SLIET SET 2025 Question Paper with Answer Key M.Sc Chemistry SET-VI

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SLIET SET 2025
Question Paper · M.Sc
Chemistry SET-VI
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SLIET SET 2025 Question Paper M.Sc Chemistry SET-VI
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SLIET SET 2025 Question Paper with Answer Key M.Sc Chemistry SET-VI

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PaperCode: 2009 Paper Name: 2009-M.Sc. (SET-VI) M.SC.(CHEMISTRY) Set Name: Original

Q-1 When CH₃MgBr is added to Crotonaldehyde, the product formed is

A Ethylene oxide B Pent-3-en-2-ol

C 2,3-dimethyl pent-4-en-2-ol D Crotonic acid
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Q-2 Which of the following is not a mirror image of either of active forms of tartaric acid?

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A d-tartaric acid

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C meso-tartaric acid
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Q-3 The parachor values for hexane and heptane are 27.01 and 309.3 respectively. The parachor value for n-CH₂ group is

A 39.2 B 6.5

C 78.4 D 5.6

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Q-4 Which of the following reaction does not produce amine?
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Gabriel’s synthesis
s e Hoffmann bromoamide reaction
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A B
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C Carbylamine reaction D Mendius reaction

Q-5 To predict the orientation of benzene derivatives, the following rule is made use of

A Crum Brown-Gibson rule B Markonikoff’s rule

C Fries rearrangement D Hammick-Illingworth rule

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Q-6 Wurtz reaction is used for

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Ascent of series
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A producing isomers B
C
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Producing aromatic compounds

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Q-7 Wilkinson’s catalyst is selectively used for reduction of

A Alkene B NO₂

C C=O D None of these

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Q-8
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The oxidation of phenol by potassium per sulphate in alkaline medium results in

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A p-Quinol
s em B p-benzoquinone
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C Benzyl alcohol D
Salicylic acid
SET 2025 Question Paper with Answer Key M.Sc Chemistry SET-VI

Q-9 The dihedral angle HCH in staggered conformation of C₂H₆ is

A 120° B 60°

C 0° D 90°

Q-10 The reduction of ester with sodium and alcohol to form alcohol s is called

A Rosenmund reaction B Mendius reaction

C Bouveault-Blanc reduction D Clemensen’s reduction

Q-11 An aqueous solution containing 1gm of urea boils at 100.25°C. The aqueous solution containing 3 gm of glucose in the
same volume will boil at:

A 100.75°C B 100.5°C

C 100°C D 100.25°C

Q-12 Which pair will not form an ideal solution?

A C₂H₅ Br and C₂H₅ I B C₂H₆ and C₆H₅ CH3

C C₆H₅ Br and C₂H₅ I D C₂H₅ Br and C₂H₅ OH

Q-13 With increase in temperature, the fluidity of liquids

A increases B decreases

C remains constant D may increase or decrease

Q-14 The critical temperature and reduced temperature of a gas are 150K and 3, respectively. The temperature of the gas is

A 50K B 150K

C 300K D 450K

Q-15 The SI units of the van der Waals parameter ‘a’ are

A Pa m³ mol⁻² B Nm⁶mol⁻²

C Jm⁶mol⁻² D Pa m⁶mol⁻²

Q-16 Which of the following compounds would be suitable as a solvent for use in recording UV spectra of organic
compounds?

A isooctane B Benzene

C iodobenzene D all the above
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SLIET SET 2025 Question Paper with Answer Key M.Sc Chemistry SET-VI

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a Q-17 The stretching frequency of C-H bond is higher in case of Carbon having
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A sp³ hybridization B sp²

C sp D π -π

Q-18 Arrange the following in increasing order of shielding of the methyl protons

A CH₃F>CH₃OCH₃>(CH₃)₃N>CH₃CH₃ B CH₃F
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C CH₃F>CH₃OCH₃<(CH₃)₃N>CH₃CH₃
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D CH₃F(CH₃)₃N
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Q-19 Which of the following will not reduce Tollens’ Reagent?

A Glucose a B sucrose

C Fructose D Maltose

Q-20 The isoelectric point of neutral amino acid is

A less than 7 B above 11

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C between 7-10 D 7

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Q-21 Pair of diastereomeric aldoses that differ only in configuration about C-2 are called

A Enantiomers B Epimers

C Anomers D Stereo isomers

Q-22 Which of the following organo-metallic compound, was one of the first pharmaceuticals, and earned a Nobel Prize in
Medicine for Paul Ehrlich in 1908?

A Cadet’s fuming liquid B (CH₃)₄As₂
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C D

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Q-23 Which of the following complexes is achiral? a
a A [Cr(ox)₃]³⁻ B [Ru(bipy)₃]⁴⁺

C cis‐[RhCl₂(NH₃)4]⁺ D None of these

Q-24 The number of unpaired electrons present, according to crystal field theory, in complex ion [Mn(CN)₆]³⁻ is

A 2 B 3

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C 4 D 5

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What will be amount of work done when 50 g iron reacts withSET 2025 Question
hydrochloric acidPaper with Answer
to produce Key M.Sc
hydrogen gas Chemistry SET-VI
in a closed
Q-25
vessel of fixed volume at 25°C?

A -2.2 kJ B 2.2 kJ

C 0 D None of these

Q-26 The standard molar enthalpy of vaporization of Br₂ (if Br₂ boils at 59.2°C) as Trouton’ rule is

A 2.8 kJ/mol B 29.2 kJ/mol

C 1.8 kJ/mol D 3.8 kJ/mol

Q-27 Trisilylamine (SiH₃)₃N has ………….. structure

A tetrahedral B plane triangular

C pyramidal D octahedral

Q-28 Which of the following is expected to be paramagnetic complex?

A [Ni(H₂O)₆]²⁺ B [Ni(CO)₄]

C [Zn(NH₃)₄]²⁺ D [Co(NH₃)₆]³⁺

Q-29 The spin‐only magnetic moment for high spin complex of [Cr(NH₃)₆]²⁺ at 25°C will be

A 4.90 μB B 2.83 μB

C 1.73 μB D zero

Q-30 The catalytic oxidation of NH₃ in presence of Pt-Rh catalyst at 850°C gives

A NO B N₂O

C N₂O₃ D N₂O₅

Q-31 [18]-crown-6 specifically binds ……. ions

A Li⁺ B K⁺

C Na⁺ D Ca²⁺

Q-32 The specific rotation of a pure enantiomer is + 12.0°. What will be its observed rotation if it is isolated from a reaction
with 20% racemization and 80% retention?

A +12.0° B 0°

C + 1.26° D +9.60°

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SLIET SET 2025 Question Paper with Answer Key M.Sc Chemistry SET-VI

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Q-33

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A velocity of light B Second radiation constant

C First radiation constant D None of these

Q-34 The centre of the ESR spectrum of the methyl radical occurred at 329.40 mT in spectrometer operating at 9.2330 GHz
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(the radiation belonging to the X band of the microwave region). Its g-value is

A 2.0027
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C 200.27
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Q-35 A reaction between reactants A and B is second order. Which of the following rate law expressions apply to the
reaction?

A Rate = k[A][B] B Rate = k[A]²

C Rate = k[B]² D All of these

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Q-36 The precessional frequency of a proton in a magnetic field of 14.1 T is.

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A 200 MHz B 400 MHz

C 600 Hz
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Q-37 The molar absorption coefficient of a solute at 270 nm is 855 L mol⁻¹ cm⁻¹. The intensity reduction in percentage,
when light passes through a 2.5 mm thick film of 3.25 mmol/L solution, will be

A 40% B 60%

C 80% D None of these

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Q-38 All the three normal vibrational modes of water are

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A

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Raman active
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B IR active

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C

las None of (A) & (B) D both (A) & (B)
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Q-39 Calcium pyrophosphate is given by the formula Ca₂P₂O₇. The molecular formula of ferric pyrophosphate is

A Fe₂P₂O₇ B FeP₂O₇

C Fe(P₂O₇)₃ D Fe4(P₂O₇)₃

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An electron is accelerated from rest, between two points at which the potentials are 20 V and 40 V respectively. The De
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Q-40
Broglie wavelength associated with the electron will be –
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A 0.75 A°
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C 2.75 m 2.75 A°
D SET 2025 Question Paper with Answer Key M.Sc Chemistry SET-VI

Q-41 The molar ionic conductance at infinite dilution of lithium halide (LiX) is found to be 89.2 x 10⁻⁴ S m² mol⁻¹. If the
molar ionic conductance of the Li⁺ ion is 38.7 x 10⁻⁴ S m² mol⁻¹,the molar ionic conductance of the halide ion will be

A 127.9 x 10⁻⁴ S m² mol⁻¹ B 50.5 x 10⁻⁴ S m² mol⁻¹

C 50.5 x 10⁻⁸ S m² mol⁻¹ D 5.05 x 10⁻⁴ S m² mol⁻¹

Q-42 The absorbance of an iron thiocyanate solution containing 0.00500 mg Fe/mL was reported as 0.4900 at 540 nm. The
specific absorptivity of iron thyocyanate is 98.0 cm⁻¹(mg/mL)⁻¹, when a 1.00 cm cuvette was used. What will be the
absorbance if the solution is diluted to twice its original volume?

A 0.5116 B 0.2450

C 1.2250 D none of these

Q-43 The speed ratio of Ag⁺ and NO₃⁻ ions in a solution of AgNO₃ electrolyzed between Ag⁻electrodes is 0.916. Transport
number of Ag⁺ will be

A 0.478 B 0.522

C 1.478 D 1.522

Q-44 Colour of oxidized form of diphenylamine indicator is

A Colourless B blue

C violet D yellow

Q-45 In the standardization of Na₂S₂O₃ using K₂Cr₂O₇ by iodometry, the equivalent weight (Eq. wt.) of K₂Cr₂O₇ is

A Mol. wt./2 B Mol. wt./3

C Mol. wt./6 D same as Mol. Wt.

Q-46 A substance A, on heating gives a colourless gas. The residue is dissolved in water to form B. When excess CO₂ is
bubbled through a solution of B, C is formed which on gentle heating reforms A. The substance A is

A calcium carbonate B calcium nitrate

C sodium carbonate D sodium bicarbonate

Q-47 Which of the following pentafluoride does not exist?

A NF₅ B PF₅

C AsF₅ D SbF₅

Q-48 Among the following which statement about the trans‐effect and the trans‐influence of any square‐planar complex is
correct?
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A
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The trans‐influence is a ground‐state
SET 2025 Question Paper with Answer Key M.Sc Chemistry SET-VI

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whereas the trans‐influence has a kinetic effect, whereas the trans‐effect has a

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origin kinetic origin
a C Both the trans‐effect and trans‐influence are D none of these
ground‐state effects

Q-49 The effective nuclear charge in the periphery of cobalt atom is

A 7.25 B 6.90

5.25 5.90
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C D

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Which of the following transition element has maximum first ionization potential?
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A B

C Cu a D Zn

Q-51 A train overtakes two persons who are walking in the same direction in which the train is going, at the rate of 2 kmph
and 4 kmph and passes them completely in 9 and 10 seconds respectively. The length of the train is

A 40 m B 45 m

C 50 m D 55 m
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Q-52
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A ACB B ADB

C
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AEB D AFB
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a Q-53 Speed of a boat in still water is 9 km/hr. It goes 12 km down- stream and comes back to the starting point in three
hours. What is the speed of water in the stream?

A 3 km/hr B 3.5 km/hr

C 5 km/hr D 5.5 km/hr

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Q-54 A bucket containing water is tied to one end of a rope of length 2.5 m and rotated about the other end in a vertical
circle. What should be the minimum velocity of the bucket at the highest point, so that the water in the bucket will not
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spill? (g = 10 m/s²)?
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A 2.5 m/s
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C 5 m/s D
7 m/s
SET 2025 Question Paper with Answer Key M.Sc Chemistry SET-VI

Q-55 A, B, C, D, E, F and G are members of a family consisting of four adults and three children, two of whom, F and G are
girls. A and D are brothers and A is a doctor. E is an engineer married to one of the brothers and has two children. B is
married to D and G is their child. Who is C?

A E’s daughter B F’s father

C G’s Brother D A’s son

Q-56

A 8 B 9

C 10 D 11

Q-57

A 1 B 2

C 3 D 4

Q-58 In covering a distance of 30 km, A takes 2 hours more than B. If A doubles his speed, then he would take 1 hour less
than B. A's speed is:

A 5 km/h B 7 km/h
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C
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10 km/h
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SET 2025 Question Paper with Answer Key M.Sc Chemistry SET-VI

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Which of the following parts of the sun is easily visible only during a total solar eclipse?
Q-59
A Core B Photosphere

C Sunspots D Corona

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Q-60 Sickle Cell Anemia is a

A Genetic Disorder
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B Virus Disease
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C Bacterial Disease
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