Karnataka SSLC Question Paper 2021 Science for Tamil Medium

Ce°⁄k’ ©¨dL‹m
Question Booklet Serial No. : 16-

®æãàí¨Ü~ ÓÜíTæ :
Register Number :

±Ü£ÅPæ - 01 / Paper – 01
GÓ….GÓ….GÇ….Ô. ÊÜááS ±ÜÄàûæ – 2021
SSLC MAIN EXAMINATION – 2021
…Œ⁄æ⁄fl : V⁄{}⁄ + …e¤k´⁄ + —⁄»⁄·¤d …e¤k´⁄
Subjects : MATHEMATICS + SCIENCE + SOCIAL SCIENCE
(ñÜËáÙÜá ÊÜáñÜᤠCíXÉÐ… ÊÜÞ«ÜÂÊÜá / Tamil and English Medium)
(CCE-RF / CCE-RR / CCE-PF / CCE-PR / NSR / NSPR )

TEAR HERE TO OPEN THE QUESTION BOOKLET
—⁄»⁄flæ⁄fl : ∑Ê◊⁄VÊX 10-30 ¬M•⁄ »⁄fl®¤¿‘⁄-1-30 ¡⁄»⁄¡ÊVÊ ] [ Time : 10-30 A.M. to 1-30 P.M.
Jlflo Æ⁄√ÀÊ-V⁄◊⁄ —⁄MSÊ¿ : 40 + 40 + 40 = 120 ] [ Total No. of Questions : 40 + 40 + 40 = 120

Ceœ Jh•Ÿs[ Tœß˚Vl ©¨j’j ß\dL‹m
V⁄¬Œ⁄r @MO⁄V⁄◊⁄fl : 40 + 40 + 40 = 120 ] [ Max. Marks : 40 + 40 + 40 = 120
83 T/E — AÔ¯À / SCIENCE
©õnÁºPÐUPõÚ SÔ¨¦PÒ / Instructions to the Students :
1. ©õnÁºPÒ u[PÒ ÷uºÄ ~øÇÄa ^miÀ EÒÍÁõÖ ÷uºÄ
£vöÁsPøÍ Question Booklet ©ØÖ® OMR uõÎÀ AuØöPÚ
JxUP¨£mh £vöÚõ¸ Pmh[PÎÀ GÊu ÷Ásk®.
Write your eleven digit Register Number on the Question Booklet as
allotted in the admission ticket in the space provided at the top right
corner of this front page.
2. C¢u ÂÚõzuõÒ ¤ß¦Ó©õP ‰i øÁUP¨£mkÒÍx (Sealed by
reverse jacket). }[PÒ ÷uºÄ Bµ®¤US®ö£õÊx Á»UøP¨ £UP
Kµzøu ¤›zx vÓUP ÷Ásk®. ÂÚõUPøÍ EÒÍhUQ¯
AøÚzx¨ £UP[PЮ \›¯õPÄ® ¤›UPõ¨£hõ©¾® EÒÍuõ GÚ
\›£õºUPÄ®.
This Question Booklet has been sealed by reverse jacket. You have to cut
on the right side to open the Question Booklet at the time of
commencement of the examination. Check whether all the pages of the
Question Booklet are intact.
3. OMR uõÒPÒ uÛzuÛ¯õP ÁÇ[P¨£k®.
OMR Sheet will be provided subject-wise separately.
4. C¢u ÂÚõzuõÒ öuõS¨¦ ‰ßÖ £SvPÍõP ¤›zxÒÍx & Pou®,
AÔ¯À ©ØÖ® \‰P AÔ¯À.
This set of Question Booklets consists of three core subjects and each
Tear here

subject has separate Question Booklet.

1605 1 of 24

5. JÆöÁõ¸ ¤›Â¾® 40 ÂÚõUPÒ öPõkUP¨ £mkÒÍx. ö©õzu©õP
120 ÂÚõUPÒ EÒÍÚ.
(i) Pou® & ÂÚõ GsPÒ 1 to 40
(ii) AÔ¯À & ÂÚõ GsPÒ 41 to 80
(iii) \‰P AÔ¯À & ÂÚõ GsPÒ 81 to 120
40 questions are provided against each subject. This set of Question
Booklets contains 120 questions in all.
(i) Mathematics – Question Numbers 1 to 40
(ii) Science – Question Numbers 41 to 80
(iii) Social Science – Question Numbers 81 to 120
6. JÆöÁõ¸ ÂÚõÂØS® J¸ ©v¨ö£s ÁÇ[P¨£k®. AøÚzx
ÂÚõÂØS® Pmhõ¯©õP Âøh¯ÎUP ÷Ásk®. JÆöÁõ¸ \›¯õÚ
ÂÚõÂØS® J¸ ©v¨ö£s ÁÇ[P¨£k®. uÁÓõÚ ÂøhPÐUS
(negative marks) Gvº©øÓ ©v¨ö£sPÒ CÀø».
Each question carries one mark. Answering all the questions is
compulsory and each correct answer will be awarded one mark. There
will be no negative marking for wrong answers.
7. ÷uºÂß ÷£õx PÁÛUP ÷Ási¯øÁ
a) ÂÚõzuõøÍ PÁÚ©õP¨ £izx¨ £õºUPÄ®.
b) Ámhzøu •Êø©¯õP {µ¨£, P¸¨¦ AÀ»x }» Ásn ø©
Eøh¯ GÊx÷Põø»¨ £¯ß£kzu»õ®. OMR uõÎÀ Ámhzøu
{µ¨¦® ÷£õx, PÁÚ©õP {µ¨£ ÷Ásk®. {µ¨¤¯ ¤ßÚº
Aøu ©õØÓ÷Áõ, \› ö\´Á÷uõ, ÷ÁÖ QÖUPÀP÷Íõ Ch®
ö£ÖuÀ Thõx.
GkzxUPõmk : 20 B® ÂÚõÂØPõÚ \›¯õÚ Âøh Auß
Á›ø\°À EÒÍ A, B, C, D CÀ C GߣuõP C¸¨¤ß,
öPõkUP¨£mkÒÍ |õßS Ámh[PÎÀ C GßÓ GÊzx EÒÍ
Ámhzøu }»® AÀ»x P¸¨¦ {Ó ø© öPõsh GÊx÷Põ»õÀ
{ǼhÄ® ÷Ásk®.
ÂÚõ Gs : 20) A B C D (Cx GkzxUPõmk ©mk÷©)

c) OMR uõÒPøÍ ©hUP÷Áõ, ÷\u® ÂøÍÂUP÷Áõ Thõx.
AÆÁõÖ ÷\u® ÂøÍÂzx ©v¨ö£sPÒ SøÓ¢uõÀ AuØS
©õnÁºPÒ uõß ö£õÖ¨÷£ØP ÷Ásk®.
1605 2 of 24

During the examination,

a) Read the questions carefully.

b) Completely darken / shade the relevant circle against Question

Number in the OMR Sheet using blue / black ball point pen. Do not

try to alter the entry and not to do any stray marks on OMR Sheet.

Example : In the question booklet, if C is the correct answer for

Question No. 20, then in the OMR Sheet shade the option C using

blue / black ball point pen as follows.

Question No. 20) A B C D ( This is an example only )

c) Do not fold, tear, wrinkle or staple on the OMR Sheet.

8. J¸ ÂÚõÂØS, JßÔØUS® ÷©Ø¨£mh (circle) Ámh[PøÍ
{µ¨¤ÚõÀ, A¢u Âøh uÁÓõÚuõP P¸v AuØS ©v¨ö£s
öPõkUP¨£hõx/ÁÇ[P¨£hõx.

If more than one circle is shaded for a given question, such answer is

treated as wrong and no marks will be given.

9. ©õnÁºPЮ, Aøu PsPõo¨£õ͸® OMR uõÎÀ AuØöPÚ
JxUP¨£mh Ch[PÎÀ øPö¯õ¨£® Ch÷Ásk®.

Student and Room Invigilator should sign in the OMR Sheet in the space

provided.

1605 3 of 24

10. ©õnÁºPÒ ÷uºÄ •izuÄhß öÁÎ÷¯ÖÁuØS •ß£õP OMR
ÂøhzuõÒPøÍ (subject-wise) £SvÁõ›¯õP \›£õºzx
÷uºÁõÍ›h® J¨£øhUP ÷Ásk®.
Candidate should return the subject-wise answered OMR Sheet to the
Room Invigilator before leaving the examination hall.

11. ÷uºÂß ÷£õx ©õnÁºPÒ u[PÐøh¯ (Rough work) ÷ÁÖ
SÔ¨¦PøÍ ÂÚõzuõÎß Pøh] £UPzvÀ AuØöPÚ JxUP¨£mh
ChzvÀ ©mk÷© GÊv¨ £õºUP ÷Ásk®.
Rough work can be done in the space provided at the end of the Question
Booklet.

12. ©õnÁºPÒ PõÀS÷»mhº, øP÷£], ì©õºm PiPõµ® ©ØÖ® CßÚ
¤Ó ªßÚÝ E£Pµn[PøÍ ÷uºÂß ö£õÊx EÒ÷Í Gkzx ö\À»
AÝ©v°Àø».
Calculators, Mobiles, Smart Watches and any other electronic equipment
are not allowed inside the examination hall.

1605 4 of 24

£õh® : AÔ¯À
Subject : SCIENCE
RÌU Põq® •ØÖ¨ ö£Óõu öuõhºPÐUPõÚ |õßS ÂøhPÐÒ
\›¯õÚ ÂøhUPõÚ SÔ±møhz ÷uº¢öukzx öPõkUP¨£mkÒÍ
OMR uõÎÀ P¸¨¦ AÀ»x }» Ásn ø© öPõsh GÊx ÷Põ»õÀ
SÔ¨¤mh Ámhzøu {µ¨¦P : 40 × 1 = 40

Four choices are given for each of the following questions / incomplete
statements. Choose the correct answer and shade the correct option in the
OMR Answer Sheet given to you with a black / blue ball point pen.

40 × 1 = 40
41. ªß Põ¢uz yshÀ uzxÁzvß Ai¨£øh°À ÷Áø» ö\´²® P¸Â
(A) ªßÚõUQ (öáÚ÷µmhº) (B) ªß `÷hØÔ
(C) ªß ÷©õmhõº (D) ªß Â]Ô

The device that works on the principle of electromagnetic induction is
(A) electric generator (B) electric heater
(C) electric motor (D) electric fan
42. 30Ω ªßuøh EÒÍ J¸ ªß ÂÍUS ©ØÖ® 6Ω EÒÍ ªßPhzv 9V
£õmh›²hß öuõhº Cøn¨¤À CønUP¨£mkÒÍx Gߣx
£hzvÀ öPõkUP¨£mkÒÍx. GÛÀ ªß _ØÔÀ ö\¾zu¨£mh
ö©õzu ªß\õµ®

(A) 4A (B) 36 A

(C) 0.25 A (D) 0.6 A

1605 5 of 24

An electric lamp whose resistance is 30 Ω and a conductor of 6 Ω
resistance are connected in series to 9 V battery as shown in the figure.
The total current flowing in the circuit is

(A) 4A (B) 36 A

(C) 0.25 A (D) 0.6 A

43. `›¯ \ø©P»Ûß Em¦Óa _Á›À P¸¨¦ Ásn® §\¨£mkÒÍx.
GöÚÛÀ Cx
(A) JÎø¯ ¤µv£¼UQÓx
(B) `›¯U PvºPøÍ J¸[QønzuÀ
(C) E÷»õP A›©õÚzv¼¸¢x ukzuÀ
(D) AvP öÁ¨£zøu EÔg_QÓx
The inner wall of the solar cooker is painted black because this

(A) reflects light (B) converges solar radiations

(C) prevents from rusting (D) absorbs more heat

44. ªß ÂÍUQ¾ÒÍ ªß CøÇ°À £¯ß£kzu¨£k® E÷»õP®
(A) ©õ[PÜì (B) h[ìhß
(C) {UPÀ (D) S÷µõª¯®
The metal used in the filament of an electric bulb is

(A) manganese (B) tungsten

(C) nickel (D) chromium

1605 6 of 24

45. J¸ ö\ÆÁPz uõªµU P®¤°ß _¸Ò Põ¢u¨ ¦»zvÀ _ØÓ¨ £k®
÷£õx ysh¨£mh ªß\õµzvß vø\ JÆöÁõ¸ •øÓ²® CÆÁõÖ
©õÖQÓx
(A) Cµsk _ÇØ]PÐUS ¤ÓS
(B) J¸ _ÇØ]US ¤ÓS
(C) £õv _ÇØ]US ¤ÓS (Aøµ _ÇØ])
(D) |õßQÀ J¸ £[S _ÇØ]US ¤ÓS
A rectangular coil of copper wire is rotated in a magnetic field. The
direction of the induced current changes once in each

(A) two revolutions (B) one revolution

(C) half revolution (D) one-fourth revolution
46. J¸ ö»ß]ß S¯ yµ® +0.50 m GÛÀ A¢u ö»ß]ß BØÓÀ
©ØÖ® ö»ß]ß ÁøP
(A) + 2.0 D ©ØÖ® SÂö»ßì

(B) + 2.0 D ©ØÖ® SÈö»ßì

(C) – 2.0 D ©ØÖ® SÈö»ßì

(D) – 2.0 D ©ØÖ® SÂö»ßì

The focal length of a lens is + 0.50 m. The power of the lens and type are

(A) + 2.0 D and convex lens (B) + 2.0 D and concave lens

(C) – 2.0 D and concave lens (D) – 2.0 D and convex lens
47. J¸ ªß _ØÔÀ ªßuøhø¯ ©õØÓ¨ £¯ß£k® P¸Â (\õuÚ®)
(A) ÷ÁõÀm «mhº (B) A®«mhº
(C) PõÀÁÚõ «mhº (D) ›÷¯õìhm
A device used to change the resistance in the electric circuit is

(A) voltmeter (B) ammeter

(C) galvanometer (D) rheostat

1605 7 of 24

48. J¸ Á›a _¸Îß EÒEÒÍ Põ¢u¨ ¦»U ÷PõkPÒ Cøn¯õÚ
÷|º÷PõkPÒ ÁiÂÀ EÒÍx. CuØS Põµn® Á›a_¸Îß EÒEÒÍ
Põ¢u¨¦»®
(A) ªPÄ® AvP® (B) \©a ^µõÚx
(C) §ä⯮ (D) ªß\õµzuõÀ E¸ÁõUP¨£mhx

The magnetic field lines inside a solenoid are in the form of parallel

straight lines. The reason for this is, the magnetic field inside the solenoid
is

(A) very high (B) uniform

(C) zero (D) produced by electric current

49. J¸ SÂö»ß]À •UQ¯ S¯® F1 ©ØÖ® JÎø©¯® O Cøh°À
ö£õ¸Ò øÁUP¨£mhõÀ EshõS® ¤®£zvß ußø© ©ØÖ® AÍÄ
(A) ©õ¯¤®£®, ÷|µõÚx ©ØÖ® ªP¨ ö£›¯x
(B) Esø©, uø»RÇõÚx ©ØÖ® ]Ô¯x
(C) ©õ¯¤®£®, uø»RÇõÚx ©ØÖ® ]Ô¯x
(D) Esø©, uø»RÇõÚx ©ØÖ® ªP¨ ö£›¯x

The nature and the size of the image formed when an object is kept
between the principal focus F1 and optical centre O of a convex lens are

(A) virtual, erect and enlarged

(B) real, inverted and small size

(C) virtual, inverted and small size

(D) real, inverted and enlarged

1605 8 of 24

50. ªß BØÓø» C¯UP BØÓ»õP ©õØÖ® P¸Â
(A) ªßÚõUQ (öáÚ÷µmhº) (B) `›¯ ªßP»®
(C) E»º ªßP»® (D) ªß ÷©õmhõº

The device that converts electrical energy into mechanical energy is

(A) electric generator (B) solar cell

(C) dry cell (D) electric motor

51. K® Gߣx Cuß SI A»S BS®
(A) ªß AÊzu ÷ÁÖ£õk (B) ªß uøh
(C) ªß÷Úõmh® (D) ªß _ø©

‘Ohm’ is the SI unit of

(A) electric potential difference (B) resistance

(C) electric current (D) electric charge

52. R÷Ç öPõkUP¨£mh AmhÁønø¯ PÁÛ :

FhP¨ ö£õ¸Ò JΠ»PÀ Gs

P 1.52

Q 1.44

R 2.42

S 1.33

G¢u FhPzvÀ J롧 ÷ÁP® ªPÄ® AvP® ?

(A) Q (B) P

(C) S (D) R

1605 9 of 24

Observe the following table :

Material medium Refractive index

P 1.52

Q 1.44

R 2.42

S 1.33

In which material medium the speed of light is very high ?

(A) Q (B) P

(C) S (D) R

53. AqUP¸ Eø»°ß BØÓÀ ‰»®

(A) AqUP¸ ¤ÍÄ ÂøÚ

(B) Pmk¨£kzu¨£mh AqUP¸ ¤ÍÄ öuõhºÂøÚ

(C) öÁ¨£® EªÌÂøÚ

(D) AqUP¸ CønÄ ÂøÚ

The source of energy in nuclear power reactor is

(A) nuclear fission reaction

(B) controlled nuclear fission chain reaction

(C) exothermic reaction

(D) nuclear fusion reaction

1605 10 of 24

54. R÷Ç öPõkUP¨£mhÁØÔÀ SÂö»ß]ß J¸ £s¦

(A) JÎUPØøÓPøÍ Â›Áøh¯a ö\´²®

(B) Kµ[PÒ uizx® ©ØÖ® |kÂÀ ö©À¼¯uõPÄ® C¸US®

(C) Esø© ©ØÖ® ÷|µõÚ ¤®£zøu E¸ÁõUS®

(D) Kµ[PÒ ö©À¼¯uõPÄ® ©ØÖ® |kÂÀ uizx® C¸US®

One property of a convex lens among the following is that, it

(A) diverges the light rays

(B) is thicker at the edges and thinner at the middle

(C) forms real and erect image

(D) is thinner at the edges and thicker at the middle

55. Aª»® ©ØÖ® Põµzxhß ÂøÚ¦›¢x E¨¦ ©ØÖ® }øµ E¸ÁõUS®
÷\º©®

(A) A¾ªÛ¯® BUø\k (B) uõªµ BUø\k

(C) C¸®¦ BUø\k (D) ÷\õi¯® BUø\k

A compound that reacts with both acids as well as bases to produce salts

and water is

(A) aluminium oxide (B) copper oxide

(C) iron oxide (D) sodium oxide

1605 11 of 24

56. ¦÷µõö£Úõ¼ß (Propanal) Pmh Aø©¨¦ Áõ´¨£õk

(A) (B)

(C) (D)

The structural formula of propanal is

(A) (B)

(C) (D)

57. ""uÛ©[PÎß £s¦PÒ AÁØÔß AqGsPÐUS HØ£ uÛ© Á›ø\
•øÓ°À ©õØÓ©øhQßÓÚ'' GßÓ Âvø¯ ö©õÈ¢uÁº
(AÔÂzuÁº)

(A) {³÷»sk (B) ö©sh½L¨

(C) ÷hõ£ŸÛ¯º (D) öíßÔ ÷©õì¼

“Properties of elements are a periodic function of their atomic number.”

This law was proposed by

(A) Newlands (B) Mendeleev

(C) Dobereiner (D) Henry Moseley

1605 12 of 24

58. RÌ öPõkUP¨£mh ÷Áv ÂøÚPøÍU PÁÛ :

Fe + CuSO4 → FeSO4 + Cu

Zn + FeSO4 → ZnSO4 + Fe

÷©À öPõkUP¨£mh \©ß£õmiÀ E÷»õP[PÎß ÂøÚvÓÛß
CÓ[S Á›ø\

(A) Zn > Fe > Cu (B) Fe > Cu > Zn

(C) Zn > Cu > Fe (D) Cu > Fe > Zn

Observe the following chemical reactions :

Fe + CuSO 4 → FeSO 4 + Cu

Zn + FeSO 4 → ZnSO 4 + Fe

The decreasing order of reactivity of the metals in the above reactions is

(A) Zn > Fe > Cu (B) Fe > Cu > Zn

(C) Zn > Cu > Fe (D) Cu > Fe > Zn

59. J¸ uÛ©zvß Aq Gs 20. |ÃÚ uÛ© Á›ø\ AmhÁøn°À
C¢u uÛ©® Põn¨£k® öuõhº

(A) 2 (B) 8

(C) 4 (D) 3

The atomic number of an element is 20. In the modern periodic table, this

element belongs to the period

(A) 2 (B) 8

(C) 4 (D) 3

1605 13 of 24

60. ö£ß^ß Pmhø©¨¤À EÒÍ JØøÓ¨ ¤øn¨¦PÒ ©ØÖ® Cµmøh
¤øn¨¦PÎß GsoUøP •øÓ÷¯
(A) 3 ©ØÖ® 9 (B) 9 ©ØÖ® 3

(C) 6 ©ØÖ® 6 (D) 7 ©ØÖ® 5

The number of single bonds and double bonds present in the structure of
benzene molecule respectively are

(A) 3 and 9 (B) 9 and 3

(C) 6 and 6 (D) 7 and 5

61. ÷\õi¯® Põº£÷Úm }ºzu øím÷µõ S÷Íõ›U Aª»zxhß ÂøÚ
¦›²® ÷£õx öÁÎÂh¨£k® Áõ²
(A) Põº£ß&øh&BUø\k (B) ø|mµáß&øh&BUø\k
(C) øímµáß (D) S÷Íõ›ß

The gas liberated when sodium carbonate reacts with dilute hydrochloric
acid is

(A) carbon dioxide (B) nitrogen dioxide

(C) hydrogen (D) chlorine

62. AÊzu¨£mh C¯ØøP Áõ²Âß •UQ¯ £Sv¨ ö£õ¸Ò
(A) ¤³m÷hß (B) Dz÷uß
(C) «z÷uß (D) ¦÷µõ÷£ß

The major component of compressed natural gas is

(A) butane (B) ethane

(C) methane (D) propane

1605 14 of 24

63. }» ¼m©ì uõøÍ ]Á¨¦ Ásn©õP ©õØÖ® ö£õ¸Ò
(A) _snõ®¦ }º
(B) y¯ }º
(C) ÷\õi¯® øímµõUø\k vµÁ®
(D) Cøµ¨ø£ }º (Gastric Juice)

The substance that converts blue litmus paper into red colour is

(A) lime water (B) pure water

(C) sodium hydroxide solution (D) gastric juice

64. E÷»õPzvß \Àø£k uõxUPøÍ AÁØÔß BUø\k uõxUPÍõP
©õØÓ £¯ß£k® •øÓ
(A) PõÀ]÷Úåß (B) ÁÖzuÀ
(C) SøÓzuÀ (D) ªßÚõØ £S¨¦

The process used to convert sulphide ores of metals into their oxides is

(A) calcination (B) roasting

(C) reduction (D) electrolysis

65. öíU^ß ©ØÖ® ø\U÷ÍõöíU÷\Ûß ö£õxÁõÚ ‰»UTÖ Áõ´£õk

(A) C6 H6 (B) C6 H14

(C) C6 H12 (D) C6 H10

The common molecular formula of both hexene and cyclohexane is

(A) C6 H6 (B) C6 H14

(C) C6 H12 (D) C6 H10

1605 15 of 24

66. §øÚ Põg\õß Cø»°ß •Ò ÷£õßÓ Kmk® CøÇ°À Põn¨£k®
Aª»®
(A) ö©zuÚõ°U Aª»® (B) BUéõ¼U Aª»®
(C) ]m›U Aª»® (D) »õUiU Aª»®

An acid present in the stinging hair of nettle plant leaves is
(A) methanoic acid (B) oxalic acid
(C) citric acid (D) lactic acid

67. ©Ûu Eh¼À Põº÷£õøím÷µm, ¦µu® ©ØÖ® öPõʨ¦ \zxUPøÍ
Áͺa]øu ©õØÓzvØS Em£kzx® íõº÷©õß
(A) öhì÷hõìöhµõß (B) Am›Úõ¼ß
(C) Cß_¼ß (D) øuµõU]ß
The hormone that regulates carbohydrate, protein and fat metabolism in
the human body is

(A) Testosterone (B) Adrenaline

(C) Insulin (D) Thyroxin

68. J¸ C¸mhøÓ°À Á͸® ö\i²ÒÍ öuõmi øÁUP¨ £mkÒÍx. ]»
|õmPÐUS Auß A¸QÀ J¸ ö©ÊSÁºzv HØÔ øÁUP¨£kQÓx.
A¢u ö\i°ß ÷©À £õP® ö©ÊS Áºzvø¯ ÷|õUQ ÁøÍQÓx. Cx
(A) ÷Áv |õmh® (B) JÎ |õmh®
(C) ¦Â |õmh® (D) }º |õmh®
A pot that has growing seedling is kept in a dark room. A burning candle is
placed near it for a few days. The top part of the seedling bends towards
the light of burning candle. This is

(A) Chemotropism (B) Phototropism

(C) Geotropism (D) Hydrotropism

1605 16 of 24

69. ¤ßÁ¸® ö£õ¸mPÎÀ E°› ]øuÄ ö£õ¸mPÐhß öuõhº¦øh¯
\›¯õÚ AÔUøP
(A) _ØÖ¨¦Ó `ǼÀ C¯ØøP¯õP÷Á ©Ö_ÇØ] Aøh¯U Ti¯øÁ
(B) `Ì{ø» ©sh»zv¾ÒÍ £À÷ÁÖ E°›PÐUS w[S
ÂøÍÂUS®
(C) öÁÆ÷ÁÖ £i{ø»PÎÀ w[S ÂøÍÂUPU Ti¯ ÷Áv¨
ö£õ¸Îß Ahºzv AvP©õuÀ
(D) _ØÖ¨ ¦ÓzvÀ AvP |õmPÒ ©¢u©õP C¸US®
The correct statement with respect to biodegradable substances among the
following is that these substances

(A) undergo recycling naturally in the environment

(B) harm various organisms in the ecosystem

(C) increase the density of harmful chemicals in different trophic levels

(D) remain inert in the environment for a long time

70. §Âß £õ¼¯À CÚ¨ö£¸UP •øÓ°ß \›¯õÚ Á›ø\
(A) ©Pµ¢u ÷\ºUøP, P¸zu›zuÀ, Âøu, P¸
(B) Âøu, P¸, P¸zu›zuÀ, ©Pµ¢u ÷\ºUøP
(C) P¸, Âøu, ©Pµ¢u ÷\ºUøP, P¸zu›zuÀ
(D) ©Pµ¢u ÷\ºUøP, P¸zu›zuÀ, P¸, Âøu
The correct sequence found in the process of sexual reproduction in a
flower is

(A) pollination, fertilization, seed, embryo

(B) seed, embryo, fertilization, pollination

(C) embryo, seed, pollination, fertilization

(D) pollination, fertilization, embryo, seed

1605 17 of 24

71. ÷uøÁ¯ØÓ ÷|µ[PÎÀ ªßÂÍUS ©ØÖ® ªß Â]Ô°ß ÷Áø»ø¯
ìÂaø\ (öuõhUQø¯) {Özv ªß\õµzøu ÷\ª¨£uØS J¸
GkzxUPõmk
(A) ©ÖzxÂk (B) SøÓzxU öPõÒ
(C) ©Ö£¯ß (D) ©Ö÷|õUP®
Saving electricity by switching off unnecessary work of lights and fans is
an example of

(A) refuse (B) reduce

(C) reuse (D) repurpose
72. Ámh ÁiÁ £aø\{Ó ÂøuPøÍ Eøh¯ £mhõoa ö\iø¯²®
[ RRyy ] ©ØÖ® _¸[Q¯ ÂøuPøͲøh¯ ©g\Ò{Ó £mhõoa
ö\iø¯²® [ rrYY ] P»¨¤Ú® ö\´²® ÷£õx F1 uø»•øÓ°À
EshõS® ÂøuPÒ
(A) ÁmhÁiÁ® ©ØÖ® £aø\ {Ó ÂøuPÒ
(B) _¸[Q¯ ©ØÖ® ©g\Ò {Ó ÂøuPÒ
(C) ÁmhÁiÁ® ©ØÖ® ©g\Ò{Ó ÂøuPÒ
(D) _¸[Q¯ ©ØÖ® £aø\ {Ó ÂøuPÒ

If a round green seeded pea plant [ RRyy ] is crossed with wrinkled yellow
seeded pea plant [ rrYY ], the seeds produced in F1 generation are

(A) round and green seeds (B) wrinkled and yellow seeds
(C) round and yellow seeds (D) wrinkled and green seeds
73. EÖ¨ö£õzu EÖ¨¦PÒ
(A) J÷µ Âu©õÚ ÁiÁø©¨¦ ©ØÖ® J÷µ ö\¯À£õk® Eøh¯x
(B) J÷µ Âu©õÚ ÁiÁø©¨¦ ©ØÖ® ÷ÁÖ£mh ö\¯À£õk®
Eøh¯x
(C) ÷ÁÖ£mh Aø©¨¦ ©ØÖ® J÷µ ö\¯À£õk Eøh¯x
(D) ÷ÁÖ£mh Aø©¨¦ ©ØÖ® ÷ÁÖ£mh ö\¯À£õk Eøh¯x

1605 18 of 24

Homologous organs

(A) have same structure and perform same function

(B) have same structure and perform different functions

(C) have different structures and perform same function

(D) have different structures and perform different functions

74. ©ÛuÛß Eh¼ß £» £õP[Pμ¸¢x Cµzuzøu Cu¯zvØSU
öPõskÁ¸® CµzuU SÇõ´PÒ
(A) u©ÛPÒ (B) u¢xQPÒ
(C) ~øµ±µÀ u©Û (D) ]øµPÒ

The blood vessels that carry blood from all parts of the human body to the
heart are

(A) arteries (B) capillaries

(C) pulmonary arteries (D) veins

75. uõÁµ[PξÒÍ AvP¨£i¯õÚ }øµ öÁÎ÷¯ØÖ® •øÓ
(A) }µõ¨ ÷£õUS (B) JÎa ÷\ºUøP

(C) _Áõ]zuÀ (D) Phzu¨ £kuÀ

Plants can get rid of excess of water by this process

(A) Transpiration (B) Photosynthesis

(C) Respiration (D) Translocation

76. Cµsk |µ®¦ ö\ÀPÐUS Cøh÷¯²ÒÍ CøhöÁÎ
(A) ÷hßiøµ´k (B) BUéõß
(C) ø\Úõ¨ì (D) ö\À Eh®¦

1605 19 of 24

The gap between two neurons is

(A) dendrite (B) axon

(C) synapse (D) cell body

77. P¸ÁõÚx uõ°ß Cµzuzv¼¸¢x Fmha \zxUPøͲ® ö£Ö® £õP®
(A) •møhUSÇõ´ (B) •møh¨ ø£
(C) P¸¨ø£ (D) öuõ¨¦Ò öPõi
The embryo gets nutrition from the mother’s blood with the help of a
special part called

(A) Fallopian tube (B) Ovary

(C) Uterus (D) Placenta

78. ©Ûu Bs CÚ¨ö£¸UP ©sh»zvÀ ]Ö}º ©ØÖ® ¢uqUPÒ
öÁÎÁ¸ÁuØPõÚ ö£õx ÁÈ
(A) ]Ö}º ¦ÓÁÈ (B) ]Ö}º SÇõ´
(C) ¢uqU SÇõ´ (D) ]Ö}º ø£
The common passage for both sperms and urine in human male
reproductive system is

(A) Urethra (B) Ureter

(C) Vas deferens (D) Urinary bladder

79. R÷Ç öPõkUP¨£mhøÁPÎÀ }º AÖÁøh Aø©¨¤ß ÷Áø»
AÀ»õux

(A) {»zui }øµ ©Ö {µ¨¥k ö\´QÓx

(B) }º B¯õÁvÀø»

(C) öPõ_UPÎß Áͺa]ø¯ AvP›UPa ö\´QÓx

(D) uõÁµ[PÐUS Dµzußø© AÎUQÓx
1605 20 of 24

Which of the following is NOT the advantage of water harvesting

structures ?

(A) Recharge the ground water

(B) Water does not evaporate

(C) Provide breeding grounds for mosquitoes

(D) Provide moisture for vegetation

80. J¸Á›ß ÁõÌUøP°À ö£Ö® •ß AÝ£Á[PÒ Akzu
uø»•øÓUS Phzu¨ £kÁvÀø». Põµn® AøÁ

(A) £µ®£øµ £s¦PÒ (B) ö£ØÖUöPõsh £s¦PÒ

(C) K[S® £s¦PÒ (D) Jk[S® £s¦PÒ

The experiences of an individual during its lifetime cannot be passed on to

its progeny because they are

(A) inherited traits (B) acquired traits

(C) dominant traits (D) recessive traits

1605 21 of 24

(©ØÓ ÷Áø»PøÍ ö\´x¨£õº£uØPõP JxUP¨£mhªh®)
( SPACE FOR ROUGH WORK )

1605 22 of 24

(©ØÓ ÷Áø»PøÍ ö\´x¨£õº£uØPõP JxUP¨£mhªh®)
( SPACE FOR ROUGH WORK )

1605 23 of 24

1605 24 of 24