Cbse Test Paper - 1

8/9/2019 Cbse Test Paper - 1

1/12

CBSE

TALENT TEST - 2013 Test ID

Physics, Chemistry, Biology, Mathematics and Mental Aptitude 2013 1 1P

Max. Marks: 50 Duration: 60 minuts

INSTRUCTIONS

Please read the following instructions carefully before answering the Question paper.

1! This "uestion paper is in #$e parts Physics, Chemistry, Biology, Mathematics and

Mental Aptitude! There are %0 "uestions in all!

2! All are o&'ecti$e type "uestions!

3! (tudent name is to &e entered in CA!"TALS only!

)! Test ID o* the "uestion paper should &e entered in the +M sheet at the appropriate

place!

%! Ans-er all "uestions!

.! /ach "uestion carries 1 mar! o negati$e mars!

! se only the -oring sheets pro$ided &y the e4aminer!

8. #s o$ %a&%u&ators an' &o( ta)&s is *ro+i)it'.

,. Darkn t+ a**ro*riat )u))& usin( a )&u or )&a%k )a&& *n in t+ M s+t *ro/i'' to

ou. n% mark' t+ ansr %annot ) %+an('. An %orr%tions or mo'i$i%ations i&&

automati%a&& rsu&t in ron( s%annin(.

10. ustions i&& ) assi(n' 4ro marks i$ t+ M S+t is &$t )&ank muti&at' torn

+itn' or s%rat%+'.

11. Do not rit ant+in( on t+ ustion *a*r.

12. T+ ustion *a*r a&on( it+ t+ M s+t an' t+ orkin( s+t ar to ) rturn' at

t+ n' o$ t+ xam.

13. A&& t+ /r )st

1


2/12

CBSE



!+si%s

1! /nergy can neither &e created nor destroyed, it simply changes *orm *rom one to

another! This is no-n as the la- o* conser$ation o* energy! 5eeping this in mind,

ans-er the *ollo-ing "uestion! The potential energy o* a *reely *alling o&'ect

6a7 decreases progressi$ely 6&7 increases progressi$ely6c7 remains constant 6d7 cannot &e determined

2! A gi$en sound -a$e has t-o consecuti$e compressions spaced &y 2 m! I* one

complete -a$e passes through a point in % 4 10 83 s, -hat is the distance the -a$e

tra$els in 10 min96a7 120 m 6&7 2)0 m 6c7 2)0 m 6d7 120 m

3! A &all thro-n up reaches a ma4imum height o* :h; and *alls do-n! Choose the correct

graph -hich properly descri&es the motion *or this period!

6a7 6&7

6c7 6d7

)! There are t-o speci#c *orces o* e"ual

magnitude that can &e applied to a

hea$y &loc! The #rst *orce ect9

2


3/12

CBSE



6a7

(ide 2?


4/12

CBSE



6ii7 Increasing the $olume o* the cylinder6iii7 Increasing the pressure on the gas6i$7 Maing a small hole in the cylinder

6a7 6i7 and 6ii7 6&7 6i7 and 6iii7 6c7 6ii7 and 6iii7 6d7 6i7 and 6i$7

11! Car&on disulphide is a non8a"ueous sol$ent -hich dissol$es phosphorus, sulphur,

selenium and &romine etc! A mi4ture o* common salt, sulphur and iron #lings is

shaen -ith car&on disulphide and #ltered through a #lter paper! The #ltrate is

e$aporated to dryness in a china dish! =hat -ill &e le*t in the dish a*ter e$aporation9

6a7 (and 6&7 Common salt 6c7 Iron #lings 6d7 (ulphur

12! Analyse the *ollo-ing statements and select the correct option!

(tatement A? Gi"uids di>use less easily as compared to gases!(tatement B? Intermolecular *orces are greater in gases!

6a7 Both the gi$en statements are incorrect6&7 +nly statement A is correct6c7 Both the gi$en statements are correct6d7 (tatement A is *alse &ut the statement B is true

13! An unused Hash&ul& contains magnesium and o4ygen! A*ter use, the contents are

changed to magnesium o4ide &ut the total mass does not change! =hich la- &est

e4plains the o&ser$ation9

6a7 Ga- o* constant composition 6&7 Ga- o* multiple proportions

6c7 A$ogadros la- 6d7 Ga- o* conser$ation o* mass

1)! /lement J is metal and K is a non8metal! J *orms compounds lie J3P2, J6L(+)72 and K

*orms n3 K2, CrK etc! =hat -ill &e the *ormula *or the compound consisting o* J and

K9

6a7 JK 6&7 J2 K3 6c7 J3 K2 6d7

JK2

1%!The atomic mass o* lead is 20 and its atomic num&er is 2, the atomic mass o* &ismuth is 20@ and its atomic num&er is 3! The ratio o* the neutronsprotons

6a7 is higher in lead than &ismuth

6&7 is lo-er in lead than &ismuth

6c7 is e"ual in &oth lead and &ismuth

6d7 does not depend upon the a&o$e data

)


5/12

CBSE



1.! (odium atom and sodium ion di>er in all o* the *ollo-ing e4cept

6a7 net electrical charge 6&7 num&er o* electrons

6c7 num&er o* protons 6d7 radius

1! Lo- many electrons, protons and neutrons are present in

F19

9

−

9

6a7 10, @, 10 6&7 @, , 10 6c7 @, @, 10 6d7 @, , @

Bio&o(

1! Jylem and phloem are the t-o conducting tissues *ound in plants! The 4ylem tissuetransports -ater and minerals -hereas the phloem tissues help in the transportation

o* *ood! These t-o tissues di>er *rom one another in -hich other aspect9

6a7 Jylem is &idirectional and phloem is unidirectional

6&7 Jylem is unidirectional and phloem is &idirectional

6c7 Phloem pro$ides mechanical strength -hereas 4ylem does not

6d7 Jylem is a li$ing tissue -hereas phloem is a dead tissue

1@! Anti&acterials are a class o* anti&iotics that selecti$ely target the &acteria -ith no

signi#cant negati$e e>ect on the cells o* the mammalian host! Anti&iotics are o*tencategoriNed according to their mechanism o* action! Identi*y the principle

mechanisms &y -hich anti&acterials inhi&it &acterial in*ection!

6a7 Cell -all inhi&ition 6&7 +rganelle mem&rane inhi&ition

6c7 uclear mem&rane inhi&ition 6d7 Both option 6a7 and option

6&7

20! It is indeed amaNing to see an amoe&a capture and engul* its *ood! Amoe&a is

unicellular and has no de#nite shape! Can you identi*y one other cell that can change

shape and hence said to &e amoe&oid in shape9

6a7 BC 6&7 =BC

6c7 er$e cell 6d7 Muscle cell

21! /utrophication is the enrichment o* an ecosystem -ith chemical nutrients! This leads

to a lush gro-th o* algae and other a"uatic plants! =hat -ill &e the immediate

conse"uence o* the algal gro-th in the -ater &odies9

%


6/12

CBSE



6a7 Increased acti$ity o* decomposers 6&7 Algae die and &egin to rot

6c7 Gac o* sunlight and o4ygen 6d7 Death o* a"uatic species

22! A protein synthesiNed in the rough endoplasmic reticulum is transported &y a $esicle

to the target site! But the deli$ered protein has &een modi#ed and is not the same as

the one synthesiNed &y the ri&osomes o$er /! In -hich organelle do you e4pect the

modi#cation o* the protein to ha$e occurred9

6a7 (mooth /ndoplasmic reticulum 6&7 i&osomes

6c7 ucleolus 6d7 olgi apparatus

23.Certain plants lie sun hemp and guar are gro-n and then ploughed &ac into the

soil! This is done in order to increase the soil nutrients and to meet the re"uirements

*or the proper gro-th o* the ne4t crop! This method o* adding nutrients is called as6a7 leaching 6&7 merging

6c7 mulching 6d7 lurching

2)! MaiNe or corn is a cereal crop that is gro-n -idely throughout the -orld! Identi*y the

right group o* characteristics -hich corresponds to the maiNe plant!

6a7 Oascular, Ho-ering, parallel $enation6&7 A$ascular, reticulate $enation, nonHo-ering

6c7 Taproot, naed seeds, parallel $enation

6d7 er *rom seletal muscles &ecause these are

6a7 striated, in$oluntary, uninucleate

6&7 non8striated, $oluntary, uninucleate

6c7 non8striated, in$oluntary, multinucleate

6d7 striated, $oluntary, uninucleate

Mat+mati%s

2.! The num&er o* solutions o* the e"uation

3 10 0 x y+ − =

is

6a7 t-o 6&7 *our 6c7 ten 6d7 in#nite

.


7/12

•

92° 20° A B

C

D

E

F

CBSE



2!T-o cu&es each -ith . cm edge are 'oined end to end! The sur*ace area o* the

resulting cu&oid is

6a7

2864cm

6&7

2360cm

6c7

2576cm

6d7

2432cm

2! The arithmetic mean o*

2 2 2 2 2 2 21 , 2 , 3 , 4 , 5 , 6 , 7

is

6a7 )0 6&7 20 6c7 30 6d7 10

2@!

( ) ( )0.3333... 1.333....÷

-ill &e e"ual to

6a7 0!%0 6&7 0!% 6c7 0!2% 6d7

1!00

30! I* each side o* a triangle is dou&led, -hat -ill &e the increase in the area o* the

triangle9

6a7 100Q 6&7 200Q 6c7 300Q 6d7 )00Q

31! In the

gi$en

#gure,

ABCD

is a

cyclic

"uadrilateral! A/ is dra-n parallel to CD and BA is produced to

92 , 20 , ABC FAE ∠ = ° ∠ = ° #nd

BCD∠

6a7

132°

6&7

108°


8/12

CBSE



6c7112°

6d7

62°

32! Lo- many diameters can &e dra-n *rom any one point on the circum*erence o* a

circle9

6a7 1 6&7 2 6c7 3 6d7 in#nite

33! The angles o* a "uadrilateral are

( ) ( ) 1

50 , 3 30 , 702

x x x + ° − ° + ° ÷

and

( )2 10 x + °

! ame

the "uadrilateral!

6a7 TrapeNium 6&7 Conca$e 6c7 ectangle 6d7 5ite

3)! I*

2 3,a = −

#nd the $alue o* a3 R a83

6a7 .) 6&7 %2 6c7 1.% 6d7 100


9/12

10cm

8cm6cm

CBSE



3%! A toy is in the *orm o* a cone mounted on a hemisphere -ith the same radius! The

diameter o* the &ase o* the conical portion is 12 cm and its height is cm! =hat is

the $olume o* the toy9 6Tae

3.14π =7

6a7 )1)!) cm3 6&7 .03!)% cm3

6c7 %3!. cm3 6d7 %23!% cm3

3.! A ey &unch contains 10 eys o* -hich only one ey can open a door! A man tries to

open the door &y choosing a ey at random and discarding the -rong ey a*ter each

trial! The pro&a&ility that the door is opened only in the #*th trial is

6a7

1

10

6&7

1

2

6c7

1

5

6d7

5

9

3! I*

216 8 2 ,

n m+× = then m is e"ual to

6a7 n R 6&7 2n R 10 6c7 3n R 2 6d7 3n R 10

3! In many parties, Ho-ers are used to decorate the display on the stages! The ta&le

gi$en &elo- sho-s the num&er o* Ho-ers used in each ro- o* the display in a

particular party!

@

o- num&er, r um&er o* Ho-ers, n1 %)2 %3 .2) ..


10/12

A

B E

F

C D

144°

128°

CBSE



=hich e"uation &est descri&es these data9

6a7 n E 2r R%2 6&7 n E r R%) 6c7 n E )r R%0 6d7 n E )r

R%)

3@! In the gi$en #gure, AB SS CD,

128 , 144 . A E ∠ = ° ∠ = °

I* /C is produced to


11/12

CBSE



6a7 a'an 6&7 (achin 6c7 Moni 6d7 agat

))! In a code C+/ is -ritten as (OIO! Lo- can C/TAG &e -ritten in that code96a7 D


12/12

9

1)

.

3.

.

%

33

CBSE



6a7 % 6&7 ) 6c7 2 6d7 3

Dir%tion: In "uestion %0, the num&ers inside the #gure are related to the num&ers

outside the #gure! Identi*y the relationship that e4ists among the num&ers in the #gure

*rom among the gi$en choices and mar the correct option on the ans-er sheet!

%0!

6a7 )2 6&7 )) 6c7 2 6d7 2

12

Documents

Cbse Test Paper - 1