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Sri Chaitanya IIT Academy., India.A right Choice for the Real Aspirant
Central Office , Madhapur – Hyderabad
Jee-Main_Online_Paper-7
PHYSICS
1)
1)1 3 3 2
M L T A
2)3 3 2
ML T A
3)3 3 2
ML T A
4)2 3 2 1
M L T A
2)
1) 2)
3) 4)
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3)
1) Statement 1 is true, Statement 2 is false.
2) Statement 1 is true . Statement 2 is true, Statement 2 is the correct explanation of
statement 1.
3) Statement 1 is true . Statement 2 is true, Statement 2 is not the correct explanation of
statement 1.
4) Statement 1 is false Statement 2 is true.
4)
1)22 v
M
2)2
v
M
3)2
2
v
M
4) 2v
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5)
1) 34J 2) 4.5J 3) 29.5J 4) 34.5J
6)
1) o3R / 2 2) o3R / R 3) o9R / 4 4) o3R
7)
1)-1 2) 2- 3) -3 4) -4
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8)
1)
Gm
r 2)
2Gm
r
3)2 1
1` 2
Gm
r
4) 2Gm
2 -1r
9)
1) a 2) 2a 3) 3a 4) -1a
10).
1)1:1 2)1:2 3) 2:1 4) depend on H
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11).
1)-2/32 2)
1/32 3)1/32 4)
1/32
12).
1) increase
2) decrease
3) remain the same
4) increase in winters and decrease in summers
13).
1) 62.50 2) 93.75 3) 125.00 4) 187.50
14)
1) 1.0 2) 0.5 3) 2.0 4) 4.0
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15).
1) Statement 1 is true, Statement 2 is false.
2) Statement 1 is true, Statement 2 is true, statement 2 is the
Correct explanation of statement 1.
3) Statement 1 is true, statement 2 is true, statement 2 is not the
correct explanation of statement 1.
4) Statement 1 is false, Statement 2 is true,
16).
1) 2) 3) 4)
17).
1) R / 2 2) R / 4 3) R / 8 4) 2R
18).
1)-7
8π ×10 N 2)-7
4π ×10 N 3)-5
8×10 N 4)-5
5×10 N
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19).
1) statement 1 is true, Statement 2 is untrue .
2) statement 1 is true, Statement 2 is true.
3) statement 1 is true, Statement 2 is true, Statement 2 is not the correct
explanation of statement 1.
4) Statement 1 is true, Statement 2 is true, Statement 2 is the correct
explanation of statement 1.
20).
1) 3.01 2) 2.001 3) 1.001 4) 1.01
21).
1)1 : 5 2) 1:25 3) 9 : 4 4) 3 : 2
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22)
1) yes, it is possible with the same aperture size
2) no, it is not possible
3) possible also with an aperture half the present diameter
4) given data is not sufficient
23).
1) No light 2) red colour only
3) red and green colours 4) green and blue colours
24). The counting rate observed from a a radioactive source at 0t was 1600
counts 1,s and at 8 ,t S it was 100 8 ,t S The counting rate
observed as counts 1,s at 6t S will be :
1) 400 2) 300 3) 250 4) 200
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25).
1) The maximum energy of the photo electrons is hv
2) The ejection of the photo electrons is instantaneous
3) The maximum energy of the photo electrons is independent of the intensity
of the light
4) No electrons are emitted id v is less than / ,W h where W is the work
function of the mental
26)
1) NOR gate 2) NAND gate 3) OR gate 4) AND gate
27).
1) 0.014N / C , 36m 2) 0.014N/C, 360 m
3) 0.14N/C,36 4) 0.14N/C, 360m
28).
1) l / 2 2) l / 4 3)2l 4) l
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29).
1) a < b ; b > c 2) a > b ; b > c 3) a = b = c 4) a < b < c
30).
1) A 2) B 3) C 4) D
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CHEMISTRY
1).
1)4
MCI 2)2
MCl 3)3
MCl 4)5
MCl
2)
1) 2 : 8 / π : 3 2) 8 / π : 3 : 2
3) 3 : 8 / π : 2 4) 2 : 3 : 8 / π
3).
1) Electrical conductivity of semiconductors and metals increases with
increase in temperature
2) In BCC unit cell the void space id 32%
3) Density of crystals decreases due to Schottky defect.
Density of crystals remains unaffected due to frenkel defect.
4)
1) iv < ii < iii < i 2) ii < iv < i < iii
3) i < iii < ii < iv 4) iii < i < iv < ii
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5)
1)2SO 2) 2CO ` 3) CO 4) NO and freons
6)
1) 6.76 2) 8.03 3) 5.76 4) 10.76
7)
1) 2.7% 2) 5.2% 3) 10% 4) 30%
8)
1) 30 2) 40 3) 60 4) 80
9)
1)-91.40×10 2) -914.0×10 3) -90.14×10 4) -9140×10
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10)
1) 0.53V 2) 0.49V 3) 0.19V 4) 0.38V
11)
1)-1
59.9kJmol 2)-1
59.2kJmol
3)-1
29.5kJmol 4)-1
39.2kJmol
12)
1) peptization 2) emulsification
3) using Tyndall effect 4) electrodialysis
13).
1) C > N > O > F 2) O > F > N > C
3) O > N > F > C 4) F > O > N > C
14)
1) Potassium ethyl xanthate 2) Copper sulphate
3) Sodium 4) Aniline
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15)
1) La z = 57 2) Ce z = 58
3) Eu Z = 63 4) Gd z = 64
16)
1)3NaHCO 2) 2 3Na CO
3)2NaHCO and 2 3Na CO 4) 3CaCO
17)
1) 1,0,1,0 2) 0,1,1,0 3) 0,1,0,1 4) 1,0,0,1
18)
1) 2 2) 3 3) 6 4) 8
19)
1) 3 isomers (Geometrical) 2) 4 isomers (Geometrical)
3) 2 isomers (Geometrical) 4) 6 isomers (Geometrical)
20)
1)2SO 2) 2CO 3) CO 4) NO and freons
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21)
1) 1,4 – dichlorobenzene
2) 1,2- dichlorobenzene
3) trans – 1,2 – dinitroethene
4) trans 2,3 – dichloro -2 – butane
22)
1) Chain isomers 2) Functional isomers
3) Geometrical isomers 4 Tautomers
23)
1) III and VI 2) I and IV
3) II and V 4) I and V
24)
1) 2)
3) 4) 4)2 2
HOCH - CH = CH
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25)
1) Propanal 2) Acetone 3) Propanol -1 4) Propene
26).
1) I I I > I > I I > I V 2) I > I I I > I I > I V
3) I I > I I I > I > I V 4) IV > III > II > I
27).
1) Acetaldehyde 2) Acetamide
3) Formaldehyde 4) Chlorobenzene
28)
1) ANA mainly occurs in the cytoplasm of the cell.
2) RNA has double stranded helix structure.
3) The sugar presents in DNA is D - ribose.
4) RNA controls the synthesis of proteins.
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29).
1) Anitimicrobials 2) Antiseptic
3) Antipyretic 4) Analgesic
30)
1) acids and alcohols 2) n – alkanes and branched alkanes
3) ketones and aldehydes 4) alkanes and alcohols
MATHEMATICS
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1).
1) Statement -1 : f is true, Statement -2 true; statement -2 is a correct
explanation for statement -1.
2) Statement -1 is true, statement -2 is true ; statement -2 is not a correct
explanation for statement -1 .
3) Statement -1 is true, Statement -2 is false.
4) Statement -1 is false, Statement -2 is true.
2).
1) 1 22 z + z 2) 1 2z z 3)2 2
1 2z + z 4) 2 21 22 Z + Z
3).
1) no point
2 ) exactly one point
3) exactly two distinct point
4) two distinct point whose coordinates are always rational number
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4).
1) Statement -1 is true, Statement -2 is true ; Statement -2 is a correct
explanation for statement -1,
2) Statement -1 is true, Statement -2 is true ; statement -2 is not a correct
explanation for statement -1
3) Statement -1 is true, Statement -2 is false
4) Statement -1 is false, statement -2 is true
5).
1) 0 2) I 3) A 4) B
6).
1) 2
7! 2) 2
6! 3) 6!7! 4) 7!
7).
1)n
2nC 2) 2nn- C 3)
2n
n-1- C 4)2n
n-1C
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8).
1) r + s 2) r + s - 2 3) r + s - 1 4) r + s + 1
9).
1) 2n n + 1 2) 2n n - 1
2 3) 2n n -1 4)
2n n + 1
2
10).
1) -π 2) π 3) -1 4) 1
11).
1) a=0, b and c are any real numbers
2) a=0, b=0, c is any real numbers
3) b=0, c = 0, a is any real numbers
4) c =0 , a = 0 , b is any real numbers
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12)
1) Statement -1 is true, Statement -2 is true ; Statement -2 is a correct
explanation for statement -1.
2) Statement -1 is true, Statement -2 is true ; Statement -2 is not a correct
explanation for statement-1.
3) Statement -1 is true , Statement -2 is false
4) Statement -1 is false , Statement -2 is true
13).
1) 5π 2) 10π 3) 50π 4) 100π
14).
1)2x - 1
x 2)
2
x
x -1 3)
2x - 1 4)
2
1
x - 1
15).
1) 3 in cot x 2) 5 in cot x 3) 3in tan x 4) 5 in tan x
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16).
1) 0 2) 0.243 3) 0.486 4) 1.8
17).
1) 1 2)1
2 3)
2
5 4)
1
3
18).
1)3 -1
2 2)
3 -1
2 3)
3 -1
2 2 4)
3 + 1
2 2
19).
1) Statement -1is true, Statement -2 is true ; Statement -2 is a correct
explanation for statement -1 .
2) Statement -1 is true, statement -2 is true ; Statement -2 is not a correct
explanation for statement -1.
3) Statement -1 is true , statement -2 is false
4) Statement -1 is false , statement -2 is true
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20).
1) 7 2) 8 3) 9 4) 10
21).
1) p q 2) q p 3) q p 4) q p
22).
1) 3 x + 2 y + 5 z + 2 1 = 0 2) 3 x + 2 y + 3 z + 3 5 = 0
3) x + y + z = 0 4) x + 2y + z = 0
23).
1) P and R are parallel 2) P and Q are parallel
3) Q and R are perpendicular 4) P and R are perpendicular
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24).
1)1
4
2)1
5
3)2
3
4)1
3
25).
1) Statement -1 is true, Statement -2 is true ; Statement -2 is a correct
explanation for statement -1.
2) Statement -1 is true, Statement -2 is true ; statement -2 is not a correct
explanation for statement -1.
3) Statement -1 is true , Statement -2 is false
4) Statement -1 is false , Statement -2 is true,
26).
1)-1
4 2)
1
4 3) 4 4) -4
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27).
1)2
y = 14x 2)2
y = -104x 3)2
y = -14x 4)2
y = 26x
28).
1) one 2) two 3) three 4) four
29)
1) 1 2 1 3, 1, || L L L L L intersects 2 L 2) 1 2 2 3, 1, || L L L L L intersects 4 L
3) 1 4 2 3, 2|| , || L L L L L intersects 3 L 4) 1 2 1 3 2, , L L L L L intersects 4 L
30).
1) above x-axis at a distance 3/2 from it
2) above x-axis at a distance 2/3 from it
3) below x-axis at a distance 3/2 from it
4) below x-axis at a distance 2/3 from it