JEE Main 08 Apr 2023 Question Paper Shift 1

JEE MAIN

Session 2

QUESTION
PAPER 2023
JOINT ENTRANCE EXAMINATION - MAIN
PREVIOUS YEAR QUESTION PAPER

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96

Let P
401and Q-PAP", I P'Q p
then 2a+b-3e-4d equal to
Dptions 9005

2. 2007

3. 2006
4. 2004

Question Tyg MCC
Ouestioo ID: 3666942935
Option 1 1D:3066949178
Option 2 iD : 3666949180
Option 3 ID:3666949179
Option &ID:3666949177
Status: Not Answered
Chosen Option ;
Q.7
The number of ways, in which 5 girls and 7 boys can be seated at a round
table so that no two girls sit together, is
Options , 790
2 7(360)

3. 7720
4 126(6)

Question Type: MCO
Question ID:3666942937
Option 21D: 3666049186
Option 31D :3666949187
Option &ID: 3666949185
Status:Answered
Chosen Qotion:4

Let R be the foeus of the parabola y 20x and the line y= mx+e intersect
the parabola at two points P and Q. Let the point G(10, 10) be the centroid
of the triangle PQR. If e-m =6, then (PQ) is
Options 346
2 317
3. 296

4. 325

Question Tvoe
in 3666942944
Option 1 ID:3666949216
Option 2ID:3666940215
Option 3 ID 3666949213
Option 4ID :3606949214
Not Answered
Chosen Ootion

Q.9
The number of arr
atte
in which all the voswele
of the s ot the word "INDEPENDENCE"
rletters
vays together is
Options 1. 16800
2 14800
3 33600

4. 18000

Queston D3o00
Option 2 ID:3666949181
Option 3 ID:3666940182
Option 4 iD : 3666949184
Status: Answered
Chosen Option :

9.10
2 1 0
Let A 1 2 -1 If ladi adj(adi 2A)=(16), then n is equal to
|0 -1 2
Options 12

2 10

3 8

Ouestion Tvoe: MCO
Ouestion ID: 3666942934
Option 1 ID:3666940175
Option 2ID:3666040173
Cption 3ID:3666949174
e: Mot Aeawarad
Chosen Cption

Lot the number of elements in sots A and B be five and two respectively.
Lat the

mber of subsets of
number AxB each having at least 3 and at most 6
olements is :

Options 752

2 782

3. 772
4. 792

Question Type:MCQ
QuestionID:3066942931
Option 11D:3666949163
Option 2 iD: 3666049164
Option 3 (D:3666949162
Option 4ID2 3000YTo1
wee
Chosen ption:4

0.12
the equation of the plane containing the line
x+2y+3z-4 =0= 2r+y-z +5 and perpendicular to the plane
F=(i-)+ái+j+ +i-2j+3k) is ar+by+c=4, then (a-b+c) is equal
tc

Options 1. 18
2. 24

3 22
4 20

Question Type:Mea
s06942945
Ootion 1ID:3666949217
Option 2 ID:3666049220
Option 3 ID:3666940219
Option &ID:3666949218
Status: Not Answered
Chosen Option

o13

The shortest distance between the lines 4
- 3 and

Options

2 2/6

Question ID: 3666942946
Option 1iD:3666949221
Option 2ItD:3666949223

Status:Answart
Chosen Option : 4

9.14
(a-cos(3r) sin'(Ax)
lim cos(4x) (log, (2x +1) is equal to
Options 24

2 15

3 18

4. 9

Question iD:3666942940
Option 1 iD:3666049200
Option 2ID :360649198
Option &|D 3660949197
Status:Not Answered
Chosen Option:

Q.15
In a bolt factory, machines A, B and C manufacture respectively 209%, 30%
and 50%% of the total bolts. Of their output 3, 4 and 2 percent are respectively
defective bolts. Abolt is drawn at random from the product. If the bolt drawn
in found the defective, then the probability that it is manufaetured by the
machine Cis
Options
5

9

If the coefficients of three conseeutive terms in the expansion of (1+x) are in
the ratio 1:5:20, then the coefficient of the fourth term i
options, 1997
2. 3654

3 5481

4 2436

Question ID:3666942938
Option 1ID: 3666949189
dpton A0101
Option &ID: 3666940192
Status: Answered
Chosen Option: 2
9.17
Let Cla, ) be the circumcenter of the triangle formed by the lines
4x+3y=69,
4y-3x=17, and
x+7y=61.
Then (a- p +a+Bis equalto
Options ,
17
2. 15

3. 16
4. 18

Question Type: MC0
Question ID:3666942943
Option 1 iD: 3666949211
Option 2 iD: 3666949209
Option 3 ID: 3666949210
Opon a o0094941e
t Answered
Chosen Option:
9.18
Let f()=sinx+cosx-xel0,
sin-cOs X
nl-.Then r i equal to
Options
2

Question
yA42949
Option 1iD:3666949236
Option 2 ID:3666940233
Option 3 ID:3606949234
Option4 iD:3666949235
Not Answered
Chosen

Q.19
II the points with position vectors ai +10j +136, si +11j+114, Pi+pË-8ê
are collinear, then (19a -6p is cqual to
Options 1 36
2 49
3. 16

4. 25

Question iD: 3666942947

Option 3 ID: 3666949225
Option &1D:3666949226
Status: Not Answered
Chosen Option ;-
0.20
Negation of (p=)(qp) is
optiont pv-)
2 (-p)vq

3 (-)ap
4 qa-p)

OuestioniD3666942950

Q21
Let [] denote the greatost integer st. Then (8 (cosce x]- sleot s}) dx
is equal to
Gven
Antwer:

Question Type: SA
Question D:3666942954
Status: Not Answered

0.22
Let A={0,34,67, 8,9, 10) and Rbe the relation defined on Asuch that
R-{(y)e AxA:x-y is odd positive integer or x-y=2). The minimum
number of elements that must be added to the relation R, so that it isa
symmetrie relation, is equal to

Question Type: SA
Question ID:3666942951
Status :Answered
023
Ifthe solution curve of the differential eguation

y-2log, x)dx +(rlog, x)dy=0,x>l passes through the points.and
3
(e', a), then a is equal to

Question Type :SA
Queston b 66042055
atus: Not Apswe
0.24
Let the mean and variance of 8 numbers .y, 10, 12,6,12, 4,8 be 9 and 9.25
respectively. If x >y, then 3r-2y is equal to
Ghen
Answes

Question Type: SA
Question ID:3666942960
Status Not Answered
025
Let d=6i +9j+12k, b=ai+1l,-2k and ë be vectors such that x =£xb.
If ä- =-12,ë-(i-2j+ h =5, then -(i+j-h is equal to
Gven
Answer:

Question Type: SA
Question iD:3666942959
Status: Not Answered

0.26
Let 4, A, be the values of Afor whichthe points1,4|and (-20,1) are at
equal distance from the plane 2x +3y-Gz+7-0.If A,> h4, then the distance
of the point (4,-A 4) from the line -y.+7 j
1 2 2

Given
Answer :

Question Type: SA
Question ID:3666942958
Status: Not Answered

Q27
n'
Ifa. is the greatost term in the sequence ,
*
then a is equal to

A

Question Type: SA
Question ID 3666942953
Status: Not Answered
0.21
Let [ ]denote the greatest integer st. If the constant term in the expansion
of ( 3 r i a. then [a] is equal to

Question Type: SA
Question D:3666942952
Status: Answered

9.29
Considera circle G:+-4x-2y=4-5. Let its mirror image in the line
y=2r+1 be another cirele C:5r+5y-10fx-10gy+36=0. Let r be the
adius of C,. Thena+r is equal to
An

Question Type: SA
Question iD 3606942957
Status: Not Answered

9.30
The largest natural number n such that 3" divides G6! in

Quest
Qun: 3666942957
Status:Not Answered
9.30
The largest natural number n such that 3 divides 66! is

Given
Answer:

Cuestion Type
3666042956
Status:Not Answered

Section: Phyics Section A
Q.31
Proton (P) and electron (e) will have Bame de-Broglie wavelength when the
ratio of their momentum is (assume, m, = 1849 m.:
Options 1:1849
2 1:1
3. 43:1

4. 1:43

Question ID: 3666942974
Option 1ID:3666949303
Option 2 ID3666040306

Option 3 iD :3666949305
Stahu Answerd
Chosen Ootion:

Q.32
Two forces having magnitude A and are perpendieular to each other. The
magnitude of their resultant is:
Options

4

2

Question Type:MCQ
Question ID:3666942967

Option 2iD:3666949277
Option 3 ID:3666940275
Option &ID :3666949278
Status: Answered
Chosen Oation

Q.33
An air bubble of volume 1 em² rises from the bottom of a lake 40 m deep to
tne suce at a temperture or z ne tmophene pressure 18 P
the temperature water at the depth of 40 m and on the surface. The
volume of air bubble when it reaches the surface will be:
Options 1. 3cm
2 4 em
3. 2 cm
4. 5 cm

Question Tvpe: MCO
OioniD-3666942962
Option 11D:3666949256
Option 2 ID:3666949257
Option 3 1D:3666949255
Option &ID:3666949258
Not Answered
Chosen Ogtion:

O34 Two projectiles A and B are thrown with initial veloeities of 40 m/s and
60 m/s at angles 30 and 60 with the horizontal respectively. The ratio of
their ranges respectively is (g= 10 m/s)

Options5:2
2 2: 43
3. 4:9

4. 1:1

Question Type MCQ
QuestioniD:3666942969
Option 1ID:3666949286
Option 2ID:3666949284
Option 3 ID:3666949285

Status: Answered
Chosen Ogtion:3

0.35
In this figure the resistance of the coil of galvanometer G is 2 9. The emf of

galvanometer G is 2 2. The emf of
0.35
In this figure the resititance of the coil of
difference across C and C is:
the cell is 4 V. The ratio of potential

Options1 1
2

Ouestion Tvpe: MCQ
Questson ID 3666942979
Option 1lD: 3666949324
Option 2 D:3o009
Ootion &Ip 3666949326
Status:Not Answered
Chosen Option

9.36 For the logic cireuit shown, the output waveform at Y is:

Options

3
Question Type MCQ
Question ID: 3666042972
Option 1iD: 3666040297
Option 2 ID:3666949296
Optian 3
upion
Status: Answd
Chosen Option: 4

Q.37 An aluminium rod with Young's modulus Y-7.0x10" Nm undergoos elastic
strain o rgy per unit volume stored in the rod in SI unit is:
of 0,0495. The energy
Options 8400

2. 5600

3 2800

4 11200

uestion ID: 3666942964
Option 1ID:3666949265
Option 2 ID:3666940264
Option 3 ID :3666949263
Upion
Status: Not Answered
Chosen Option

Q.38 Civen below are two statenents:

Statement I If heat is added to a system, its temperature must

Q.38 (Given below are two statementa:
Statement I If beat is added to a system, its temperature must
increase.
Statement Il:
If positive work is done by a system in a thermodynamic
proeess, its volume must incrense.
In the light of the above statements, choose the correct answer from the
options given below
options . Statement I is true but Statement Il is false

2 Both Statement I and Statement ll are true

3. Statement I is false but Statement Il is true
4 Both Statement I and Statement II are false

Question Type: MC0
Question iD: 3666942963
Option 1iD:3606949261
Option 2 iD:3666949259
Option 3 ID:3666949262
Status: Answerad
Chosen Option: 3

Q.39
For a nucleus AX having mass number Aand atomic number Z
A The surface energy per nucleon (b) =-a, A
B. The Coulomb contribution to the binding energy b, =-a Z(Z-1)
The volume energy b, ayA

D Decrease in the binding energy is proportional to surface area.
E While estimating the surface energy, it is ansumed that each nucleon
interacts with 12 nucleons. (a
(a, and a, aree
Choose the most appropriate answer from the options given below:
OptionsCD only
2 B, C, E only

3. B,C only

4 A, B, C, D only

Question Tpe: MCQ
QuestioniD:3666942973
Option 1 1D:3666949301
Option 2 ID3066949302
Opion 3D:300094300
s Not Answered
Chosen Option

9.40
In a reflecting telescope, a secondary mirror is used to:
Options make chromatic aberration zero

2 reduce the problem of mechanical support
3 remove spherical aberration
move the eyepiece outside the telescopic tube
Ouestion TyDe: Mco
tion ID: 3666042975
Option 1iD :3666940309
Option 2 ID:3666940310
Option 3 ID: 3606949307
Option &ID:3666940308
StutusMded For Reiew
Chosen Option :

9.41
Graphical variation of electric field due to a uniformly charged insulating
solid sphere of radius R, with distance r from the centre O is represented by:

Options

2

r-R

rR

Question itD:3606942980
Option 1 iD: 3666940329
Option 2ID:3666949327
ion &ID- 3666040330
Statu Answered
Chosen Option: 2

4 Given below are two statementa:
Statement I IfE be the total energy of asatellite moving around the
earth, then its potential energy will be
Statement II: The lkinetie energy of a satellite revolving in an orbit is
equal to the half the magnitude of total energy E.
In the light of the above statements, choose the most appropriate answer
from the options given below
Options Both Statement I and Statement II are incorrect

2 Both Statement I and Statement II are correct

3 Statement I is correct but Statement II is incorrect

4. Statement I is incorrect but Statement II is correct

Question Type: Mea
42066
n 36A6040268
Option 2 ID:3666949267
Option 3 ID 3666949269
Option &iD:3666949270
Status: Answered
Chosen Option :
9.43
A TV transmitting enna is 98 m high and the receiving antenna is at the
al 1Cbe radis of the earth is 6400 km, the surface area eovere
by the transmitting antenna is approximately:
Options 1. 3942 km

2. 1240 km

3. 4868 km

4. 1549 km

Question Type MCO
Question iD:3666942971
n366A40294
Option 3 ID: 3666949291
Option 4 ID:3666949292
Status:Answered
Chosen ption :1

Q.44
At any instant the velocity of aparticle of mass 500 gis (2i+3) ms. If the
foree acting on the particle at -ls is i +x)N. Then the value of xwill be:
Options, 6
2. 2

3. 4

4. 3

Question ID:3666942966
Option 1 1D:3666949271
Option 2 ID : 3666949274
Odion Ain-3480402723
Status:Answered
Chosen Option: 4

9.45
The engine of a train moving with speed 10 ms- towards a platform sounds a
whistle at frequeney 400 Hz The frequency heard by a passenger inside the
train is: (neglect air speed. Speed of sound in air = 330 ma-)
Options 400 Hz

2 200 Hz
3. 388 Hz

Status: Answered
Chosen Option

* The engine of a train moving with speed 10 ms- towards a platform sounds a
whistle at frequency 400 Hz. The frequency heard by a passenger inside the
train is: (neglect air speed. Speed of sound in air =330 ms-)
Options 400 Hz

2 200 Hz

3 388 Hz

4 412 Hz

QuestioniD:3666942961
Option 11D:3666949254
Option 31D:3666949252
Option 4ID:3666949253
Status : Answered
Chosen Option 4

0.46
Dimenaion ofshould be equal to

Options T:
2 LT*

4 T/L
Question Type:MCO
QuestionID:3666942976
Option 11D: 3666949314
Option 2ID:3666949313
Option 3b oo
S Aoswered
Chosen Option:

947
Certain galvanometers have a fixed core made of non magnetic metallic
material. The function of this metallic material is
Options. to oscillate the coil in magnetie feld for longor period of time

2 to produce large deflecting torque on the coil
3. to make the magnetic field radial
4 to bring the coil to rest quickly

Question Type MCQ
2077

QueAAAA9315
Option 2ID :3606949316
Option 3 I0:3666949317
Option &ID : 3666949318
Status: Anowered
Chosen Option:2
Q.48A.
A charge particle moving in magnetic field B, has the components of velocity
along Bas well as perpendicular to B. The path of the charge particle will be
Options helical path with the axis perpendicular to the direction of magnetic
field B

2 helical path with the axis along magnetic field I
1 straight along the direction of magnetic field B
4 cireular path

Question ID:3666942978
Option 2ID:3666949321
Option 3ID :3666949319
Option &ID: 3666949320
Status: Answered
Chosen Option: 2

0.49
The weight of a body on the earth is 400 N. Then weight of the body when
taken to a depth half of the radius of the earth will be:
Options Zero

2. 300 N

3 100 N

4 200 N

Question Tvpe: MCQ
Question ID:3666942968
Option 1ID:3666949279

Optionzn00
Option &ID: 3666949281
Status Answered
Chosen Option:4

Q.50
A eylindrical wire of mass (0.4+0.01)g has length (80,0) cm and radius
(6+0.03) mm. The maximum error in its density will be:
Options

2 3.5%
3. 5%

4. 1%

Question Trpe: MCQ
Question ID:3666942970

Option 3 ID:3666949290
Option &ID:36669492a7
Status Answered
Chosen Option :1

Section:Pbyics Sectien B
0.51
An oscillating LC eircuit consists of a 75 mH inductor and a 12 F capacitor.
If the maximum charge to the capaeitor is 2.7 C. The maximum current in
the cireuit will be mA

Gtven
Answer:

Question y666042987
Saus: Not Answered
O5
An air bubble of diameter 6 mm rises steadily through a solution of density
1750 kgm² nt the rate of 0.35 ems. The co-efficient of viscosity of the solution
(neglect donsity of air) is Pas (given, g = 10 ms).

Given
Answer

Question Type: SA
Question iD:3666942982
Status: Not Answered
0.53
Two vertical parallel mirrors A and B are separated by 10 cm. A point object
O is placed at a distance of 2 em from mirror A. The distance of the second
nearest image behind mirror A from the miror A is cm

42 cm
O

10em>

Ghven 1B
Answer:

Question Type:SA
Question iD:3666942986
Status: Answered

0.54
An electrie dipole of dipole moment is 60x10Cm placed in a uniform
electrie field of 1.5x 10'NC- in such a way that dipole moment is along
electrie field. The work done in rotating dipole by 180" in this field will be
ml

Gven 18
Answer

Question Type: SA
Question iD: 3666942990
Status:Answered

O55
The momentum of a body is increased by 50%. The percentage increase in the
kinetie energy of the body is
Gtven 125
Ansuer

Question Type
36660429A4

Satus: Answered
A current of 2 A flows through a wire of cross-sectional area 25.0 mm. The
number of free electrons in a cubic meter are 2.0x1o. The drift velocity of
the eleetrons is 10 ms (given, charge on electron = 1,6x10-1"C).
Given 25
Angwer:

Question Type: SA
Question ID:36669429a9
Status:Answered

57
An organ pipe 40 em long is open at both ends. The speed of sound in air is
360 ma, The frequeney of the second harmonie is Hz

21:12. l
O.57
An organ pipe 40 em long is open at both ends. The speed of sound in air is
360 ms The frequency of the second harmonie is Hz

Given
Answer

Questioa s66642981
Status: Not Answered

9.58
The moment of inertia of a semicircular ring about an axis, passing through
the center and perpendicular to the plane of ring, is MR², where R is the
radius and M is the mass of the semicireular ring. The value of x will be

Given
Answer

Question Type: SA
Question ID:366694298
Status: Not Answered

0.59
The magnetic intensity at the center of a long eurrent carrying solenoid is
found to be 1.6x10Am-.If the number of turns is 8 per em, then the current
flowing through the solenoid is
Given --
Answer

Question Type:SA
Question ID : 3666942988
Status: Not Answered

0.60
Anucleus with mass number 242 and binding energy per nueleon as 7.6 MeV
breaks into two fragment each with mass number 121. If each fragment
nucleus has binding energy per nucleon as 8.1 MeV, the total gain in binding
energy is MeV.

Glven 121
Anawer

Questo 3AAA42985
Status: Answered

Sectian:Chemistry Section A
Q61
The water gas on reacting with cobalt as a catalyst forms
Options Ethanol
2 Methanoic acid

3. Methanol
4 Methanal

Question Type: McQ
42006

Detion 11D-3666949364
Option 2 ID: 3666949363
Option 3 ID:3666949362
Option 4iD:3666949361
Answered
Chosen ption:3
2.62 The reaction

H,(g) +AgCl()H(aq) +CI (aq+Agta)
occurs in which of the given galvanic cell.
Options PIH.(oI KClol") |AgCl)| Ag

2 Pt|H(g)l HCl(sol') | AgCls)l Ag
3 AglAg1 KC(sl")1 AgNO, IAg

4 Pr|H,(o|HCl(ol") lAgNO,(o)1Ag
Question iD:3666942992
Option 1ID :3666949348
Option 3ID: 3666049345
Option 4I0D:3666949346
Stattis:Answered
Chosen Qtion: 2

9.63
210, +x +12H' 6L. +6H.O
What is the value of s?
Optiont 1 2
2 10

3. 12
4 6

Question Type MCQ

9.64
Given below are two statements: One is labelled as Assertion A and the other
is labollod as Reason R.

Assertion A: Butan-1-ol has higher boiling point than ethoxyethane.
Reason R: Extensive hydrogen bonding leads to stronger association of
molecules.
In the light of the above statements, choose the correct answor from the
options given below:
Options
Both A and R are true and R is the correct explanation of A
2 A is true but R is false
3 Both A and R are true but R is not the correct explanation of A
4 A is false but R is true

Question ID: 3666943005
Option 11D:3666940397
Option 2iD:3666949399
Option 3lD3000v
Stuus Answered
Choaen Option :

Q.65
In chromyl chloride, the number of d-electrons present on chromium is same
as in (Given at no. of Ti : 22, V: 23, Cr:24, Mn : 25, Fe: 26)
Options Ti()
2 Fe (ll)

3 Mn (VII)
4 V (IV)

Question Tvpe:MCQ
Question iD:3660943010
Option 1iD:3666949420
Option 2ID: 3666949418
Option 3ID:3666949417
Option & 419
Weec

Chosen Option: 2

9.66
Choose the halogen which is most reactive towards Sxl reaction in the given
compounds (A. B,C& D)

A

B.

C.

Me

D

Options,
A-Br : B-L: C- Br : D- Br
2 A-Br B-L,: C-Br, : D-Br
3 A- Br: B-L: C- Br:D-Br
4 A-Br: B-l: C-Br: D-Br
Ouestion TvpeMCQ
Question ID:3666943003
Option 1ID:3666949392
Option 2ID:3666949391
ion 4 ID:3666949390
Status:Answered
Chosen Option:
Q.67
Which of the following represent the Freundlich adsorption isotherms?

log
B
constant

logp ’

C.

constant

D.

Choose the correct answer from the options given below:

Options AC,D only
2 B,C, Donly
3 A Bonly
4 A, B, Donly
QuestionID:3666942993
Option 1iD:3666949352
Option 21D :3666949350
n.38AAO49a51
Status: Answered
Chosen Opton:4

Which of the following complex is octahedral, diamagetic and the moat
stable?

Optios Na, (CoCl)
2 KjCoCN)]
1 [Ni(NH).je1,

Question Type
66943000
Option 11D: 3666040380
Option 2ID: 3666940377
Option 3ID : 3666949379
Öption &ID: 3666949378
Anewered
Chosen

Q.00 Mateh ListI with List Il:

List I (Reagents used) List lI (Compound with
Functional group detected)
A Alkaline solution of copper
sulphate and sodium citrate HO

Neutral FeCla solution

Alkaline chloroform solution
CHO

D. Potassium iodide nd OH
sodium hypochlorite
IV

Choose the correct answer from the options given below:
Options AI, BV, C-I. D-I
2 A-IV, BI, CII, D-III
3. A-III, B-IV, CII. D-I
4 AL, BIV, C-IL, DI

Question D:300
Option 2ID:3666949414
Option 3 ID :3666949416
Option &ID: 3666940413
Status: Answered
Chosen Option:

9.70
The correet order of spin only magnetie moments for the following complex
ions is

Options
[Co.] <(MnBr, <[Fe(CN), <[Mn(CN).
2 [Pe(CN),]< [Mn(CN),J <[CaF,] <[MnBr,

[FoCN), <(Colif <(Mnlr,f <(MnCN),J
(Mnsr, <[coF.| <[FoCN,I< MacCN).
Question ID:3666943002
Option 1iD:3666949387
Option 2 iD:3666949386

Option &ID:3666949388
Status : Answered
Chosen Option:

Q.71
The major produet formed in the following reaction is:

major product
EOH
co,Et (ü) H,0*
Options
o,H

oH

Question iD: 3666943004

wpn.AAO40395
Option 3ID:3666949394
Option4 ID:3066949393
Status:Not Answered
Chasen Option

0.72
Match List I with List II:
List I(Species) List I(Maximum allowed concentration
in ppm in drinking water)
A. F 50 ppm
SO <5ppm
NO, 2 ppm
D. Zn IV. <G00 ppm

Choose the eorrect anawer from the options given below:
Options A-I. BI. CIII. D-IV

2 A-IV, BIIL, CII D-I
1 A-I, BI, CI, D-IV
4 A-II, BL CL, D-IV

66043001
Oetion 11D:3666049381
Option 2 ID:3666949382
Option 3ID:3666949383
Option &ID:3066949384
Status Answered
Chosen Option :4

Q Whieh halogen is known to cause the renction given below:
20u+4x ’CuX, (-) +X,
Options All halogens
2 Only lodine
3 Only Chlorine

4 Only Bromine
Question Tvpe: MCQ
Question ID:3666942999
Option 1iD:3666040373
Option 2ID :3666949374
Ontion &ID-3666940375
Status:Answered
Chosen Option:2

Q74 Given below are two statementa:

Statement I: Lithium and Magnesium do not form superoxide

Statement II: The ionic radius of Li is larger than ionic radius of Mg
In the light of the above statements, choose the most appropriate answer
from the options given below:
Options

Options
Statement I is incorrect but Statement Il is correct

2 Both Statement I and Statement II are incorroct

3. Both Statement I and Statement II are correct
4 Statement I is corroct but Statement II is incorrect

aon ype
66942998
Option 1 ID:3666949372
Option 2 ID:3666949370
Option 3 ID :3666949369
Option &ID:3666949371
Answered
Chosen Ootion :

9.75
Match List I with Lást Il:
List I List II
Saccharin High potency sweetener
B Anpartame First artificial sweetening agent
C Alitame II Stable at cooking temperature
D Sueralose IV. Unstable at cooking temperature

Choose the correct answer from the options given below:
Options AII BIII, C-IV, DI

2 A-I, B-IV, C-, D
2 A-V, B-III, C-I, D-II

4 AII, BIV, CI, DIlI
Question Type:MCQ
Question D: 3666943008
ien 21n-3666040410
Option 3 ID: 366694912
Option 4ID: 36669494o9
Status:Answered
Chosen Option: 2

U.0 What is the purpose of adding gypsum to cement?

Options To give a hard mass
2 To slow down the process of setting

3. To speed up the process of setting
4 To facilitate the hydration of cement
Question iD: 3666942997
Option 1iD:3606949365
Option 2ID:3666949367
Option 3ID :3666949368
Option &iD 3000949300
Chosen Oetion2

9.77
The correct order of electronegativity for given elements is:
Options C>P>At > Br
2. Br>P> At > C
3 Br >C> At >P
4 P> Be >C> At

Question Type: MCo
3666942994
Option 1 (D:3666949353
Option 2ID :3666949356
Option 3 ID:3666949354
Option &itD:3666949355
Not Answered
Chosen 0ntion

Sulphur (S) containing amino acids from the following are:
(a) isoleucine (b) cysteine (c) lysine (d) methionine (e) glutamie acid
Options, a.b,c
2. a, d
3 b,e, e

4 b. d

Question Type: MCOo
Question ID:3666943007
10- 3666040408
Option 3iD:3666949407
Option 4ID:3666949406
Status Not Answered

Chosen Option :

Which of the following metala Can be extracted throueh alkali leachine

0.70
Which of the following metals can be extracted through alkali lenching
technique?
Options Ph
2 Sn

3 Au
Cu

Question Type:MCO
in- 3660042995
Option 1ID:3666949350
Option 2ID:3666949360
Option 3 iD:3666940357

Chosen etion:3

Q.80 Match List I with List II:

is reacted with roagents in List I to formn products in List IL.

List I(Reagent) List II (Produet)
NH,
A
B HBE,, A CN

Cu, HCI
N=N -NH,
D. CuCN/KCN

Choose the correct answer from the options given below:
Options A. BIL. C-IV. DI
2 AIV, B-IIL C-IL DL

3. A-III, BI, C-IV, D-II
4. A-III, BL C-I D-IV

Question Type : MCQ
Question ib:3666043006
Option 1iD:3066949403
OptionzU 3o00
Option &ID .3666949404
Sutus: Answered
Chosen Option:3

Section:Chemistry Section B

The titration curve of weak acid vs. strong base with phenolphthalein as
indictor) in shown beow. The K4x10.
Given: log20.3

12

10

5 10 15 20 25

The number of following statements which isfare correct about
phenolphthalein is
A. It can be used as an indicator for the titration of wenk ncid with weak
base
It begins to change colour at pH = 84
C. It is a weak organic base
D. It is colourless in acidic medium

Given
Answer:

Question
nh 3666943016
Satus: Not Answered

0.82
The number of following statement/s which is/are incorreet is
(AY Line emission spectra are used to study the electronic structure
3(B) The emission spectra of atoms in the gas phase show a continuous
spread of wavelength from rod to violet
(C) An absorption spectrum is like the photographie negative of an
emission spectrum
akli

0.82 The number of following statement/s which is/are incorreet is
Line emission spectra are used to study the electronic Htrueture
3(A The emission speetra of atoms in the gas phase ahow a continuous
(B)
spread of wavelength from rod to violet
(C) An absorption spectrum is like the photographie negntive of an
emission so
spectr
(D) The element helium was disoovered in the sun by wpeetroscopie method

Gven
Answer
Question Type: SA
Question ID:3066943012
Status: Not Answered

Q 83
XeFi reacts with SbFs to form
[XeFmT [SE,.
mnty+z

Given
Answer

Question Type:SA
Question iD:3666943018
Status t Answered

Q.84 The number of following factors which affect the percent covalent character of
the ionic bond in
(A) Polarising power of cation
(B) Extent of distortion of anion
(C) Polarisahbility of the anion
(D) Polarising power of anion

GiuenT

Question Type SA
Question lD: 3666943013
Status: Answered

0.5 g of an organic compound (X) with G0% carbon will produce X10g
of CO; on eomplete combustion.
Given 11
Answer:
Question Type: SA
Question ID:3666943020
Status: Answered

0.8
When a 60 W electric heater is immersed in a gas for 100s in a constant
volume container with adiabatic walls, the temperature of the gas rises by
5C. The heat capacity of the given gas is JK- (Nearest integer)

Question lype 666943014
e- Not Answered

The number of given statement/s which isare correct is
3A) The stronger the temperature dependenee of the rate constant, the
higher is the activation energy.
(B) Ifa reaction has zero activation energy, its rate is independent of
temperature.
(O The stronger the temperature dependenee of the rate constant, the
smaller is the nctivation energy.
(D) If there is no correlation between the temperature and the rate
constant then it means that the reaction has negative nctivation
energy.

Given
Answer

Question Type: SA
Question iD:3666943017
Status:Not Answered

P-2atm Pdatm
mm P =#atm
V=3L V =L
CH0 COg) Nefe)

Three bulbs are filled with CH, C0: and Ne as ahown in1the
t picture. The
bulbs are connected throuEn pye
tre is hoheut
out the prossure of the
ystem is found t atm. (Nearest integer)
Gven
Answer

Question Type:SA

Satus Answered
Q.85
0.5 g of an organie eompound (X) with 609% carbon will produce
of CO2on complete combustion. X10g

111
AnsaRr

Question Type: SA
Question ID: 3666943020
Status: Answered
0.86
When a 60 W electrie henter is immersed in a gas for 100s in
eonstant
volume container with adiabatic walls, the temperature of the gas rises by
5C. The heat capacity of the given gas is JK (Nearest integer)
Grven

Question Type: SA
Question ID:3666043014
Status :Not Answered

The number of given statement/s which is/are correet is
(AN The stronger the temperature dependence of the rate constant, the
higher is the activation energy.
(B) If a reaction has zero activation energy, its rate iN independent of
temperature.
(C) The stronger the temperature dependence of the rate constant, the
smaller is the activation energy.
(D) If there is no correlation between the temperature and the rate
constant then it means that the reaction has negative activation
energy.

Given
Anser

Question Type: SA
Question ID:3666943017
Status: Not Answered

P=2atm P=4atm P-latn
V=al V=4L
CH( c0,4 Nele

Throe bulbs are filled with CH, C0: and Ne as shown in the picture. The
bulbs are connected through pipes of zero volume. When the stopoocks are
opened and the temperature is kept constant throughout, the prossure of the
Rystem is found to be atm. (Nearest integer)
ven-
Antanr

Question Type:SA
Question iD:3666943011
Status Not Answered

Q.89
Molar mass of tho hydrocarbon (X) which on ozonolysis consumes one mole of
Oa per mole of X) and gives one mole each of ethanal and propanone is
g mol- (Molar mass of C:12 g mol-, H:1gmol-)
Given 70
Answer

Question Type SA
6943019

0.90
Quentond
Status: Answered

The vapour
shown belosepressure vs, temperature eurve for a nolution solvent system is

1atm

1
Temperature

The boiling point of the solvent is

Ghven
Answer

Question Type: SA
Question ID:3666943015
Status: Not Answered