Page 1
SAT
MATHEMATICS
1. If A={1,2,3,4}, B = {2,4,5,6} , U={1,2,3,4,5,6,7} then A’nB’ =______
(A) ? (B) {1,2,3,4,5,6} (C) {7} (D) {3,4,5,6}
2. An equivalent expression of
5
7 4 5 ?
after rationalizing the denominator is__
(A)
20 5 35
31
?
(B)
20 5 35
129
?
(C)
35 20 5
31
?
(D)
35 20 5
121
?
3. If x-2 is factor of 3x
4
-2x
3
+ 7x
2
– 21x +k then the value of K is
(A) 2 (B) 9 (C) 18 (D) -18
4. Line x + y = 2 passes through the ________________quadrants.
(A) 1
st
and 3
rd
both (B) 2
nd
and 3
rd
both
(C) 3
rd
and 4
th
both (D) 1
st
, 2
nd
and 4
th
all
5. If the measure of the angle of ?ABC are in proportion 1 : 2: 3, then the measures of the smallest
angle is
(A) 30
0
(B) 60
0
(C) 90
0
(D) 120
0
6. ?ABC is an equilateral triangle, Ab=6, The points P,Q and R are midpoints of AB , BC and CA
respectively. The perimeter of PBCR is __________
(A) 18 (B) 15 (C) 9 (D) 12
7. In
m
ABCD, let AM be the altitude corresponding to the base BC and CN the altitude
corresponding to the base AB , If AB = 10cm, AM=6cm and CN=12cm then BC = _______cm.
(A) 20 (B) 10 (C) 12 (D) 5
8. A circle passes through the vertices of an equilateral ?ABC. The measure of an angle subtended by
the side AB at the centre of the circle has measure ________
(A) 30 (B) 60 (C) 90 (D) 120
9. If the lengths of the sides of a triangle are in propotion 3:4:5 then the area of triangle is _________sq.
units, where perimeter of the triangle is 144
(A) 64 (B) 364 (C) 564 (D) 864
Page 2
SAT
MATHEMATICS
1. If A={1,2,3,4}, B = {2,4,5,6} , U={1,2,3,4,5,6,7} then A’nB’ =______
(A) ? (B) {1,2,3,4,5,6} (C) {7} (D) {3,4,5,6}
2. An equivalent expression of
5
7 4 5 ?
after rationalizing the denominator is__
(A)
20 5 35
31
?
(B)
20 5 35
129
?
(C)
35 20 5
31
?
(D)
35 20 5
121
?
3. If x-2 is factor of 3x
4
-2x
3
+ 7x
2
– 21x +k then the value of K is
(A) 2 (B) 9 (C) 18 (D) -18
4. Line x + y = 2 passes through the ________________quadrants.
(A) 1
st
and 3
rd
both (B) 2
nd
and 3
rd
both
(C) 3
rd
and 4
th
both (D) 1
st
, 2
nd
and 4
th
all
5. If the measure of the angle of ?ABC are in proportion 1 : 2: 3, then the measures of the smallest
angle is
(A) 30
0
(B) 60
0
(C) 90
0
(D) 120
0
6. ?ABC is an equilateral triangle, Ab=6, The points P,Q and R are midpoints of AB , BC and CA
respectively. The perimeter of PBCR is __________
(A) 18 (B) 15 (C) 9 (D) 12
7. In
m
ABCD, let AM be the altitude corresponding to the base BC and CN the altitude
corresponding to the base AB , If AB = 10cm, AM=6cm and CN=12cm then BC = _______cm.
(A) 20 (B) 10 (C) 12 (D) 5
8. A circle passes through the vertices of an equilateral ?ABC. The measure of an angle subtended by
the side AB at the centre of the circle has measure ________
(A) 30 (B) 60 (C) 90 (D) 120
9. If the lengths of the sides of a triangle are in propotion 3:4:5 then the area of triangle is _________sq.
units, where perimeter of the triangle is 144
(A) 64 (B) 364 (C) 564 (D) 864
10. The ratio of radii of two cones is 2:3 and the ratio of their slant heights is 9:4. Then the ratio of their
curved surface area is
(A) 3 :2 (B) 1:2 (C) 1:3 (D) 2:3
11. The probability of getting both heads, when two balanced coins are tossed once is
(A)
1
2
(B)
1
3
(C)
1
4
(D)
1
5
12. The characteristic of the number log 0 003942 = _____
(A) 3 (B) 2 (C) -3 (D) -2
13. A number having digit 2 at unit place then its cube has digit _____ at its units place.
(A) 1 (B) 2 (C) 8 (D) 4
14. 3-years ago, the sum of ages of a father and his son was 40 years. After 2-year, the sum of ages of
the father and his son will be__________
(A)40 (B) 46 (C) 50 (D) 60
15. Correspondence ABC ? ? ? DEF of ?ABC and ?DEF is similarity. If AB + BC + 10 and DE + EF + 12 and
AC = 6 then DF = ______
(A) 6 (B) 5 (C) 7.2 (D) 16
16. In ?ABC, if
1
AB
=
2
AC
=
3
BC
, then m ? C = ________
(A) 90 (B) 30 (C) 60 (D) 45
17. If 7? and 2? are measures of acute angles such than sin 7? = cos2?, then sin 3? - 3 tan? = ______
(A) 1 (B) 0 (C) -1 (D) 1- 3
18. If the angles of elevation of tower from two points a and b (a>b) meters from its foot and the same
side of the tower, have measure 30 and 60, then the height of the tower is __________
(A) ab ? (B) ab (C) ab ? (D)
a
b
19. A chord of (0,5) touches (0,3). Therefore the length of the chord = ____
(A) 8 (B) 10 (C) 7 (D) 6
Page 3
SAT
MATHEMATICS
1. If A={1,2,3,4}, B = {2,4,5,6} , U={1,2,3,4,5,6,7} then A’nB’ =______
(A) ? (B) {1,2,3,4,5,6} (C) {7} (D) {3,4,5,6}
2. An equivalent expression of
5
7 4 5 ?
after rationalizing the denominator is__
(A)
20 5 35
31
?
(B)
20 5 35
129
?
(C)
35 20 5
31
?
(D)
35 20 5
121
?
3. If x-2 is factor of 3x
4
-2x
3
+ 7x
2
– 21x +k then the value of K is
(A) 2 (B) 9 (C) 18 (D) -18
4. Line x + y = 2 passes through the ________________quadrants.
(A) 1
st
and 3
rd
both (B) 2
nd
and 3
rd
both
(C) 3
rd
and 4
th
both (D) 1
st
, 2
nd
and 4
th
all
5. If the measure of the angle of ?ABC are in proportion 1 : 2: 3, then the measures of the smallest
angle is
(A) 30
0
(B) 60
0
(C) 90
0
(D) 120
0
6. ?ABC is an equilateral triangle, Ab=6, The points P,Q and R are midpoints of AB , BC and CA
respectively. The perimeter of PBCR is __________
(A) 18 (B) 15 (C) 9 (D) 12
7. In
m
ABCD, let AM be the altitude corresponding to the base BC and CN the altitude
corresponding to the base AB , If AB = 10cm, AM=6cm and CN=12cm then BC = _______cm.
(A) 20 (B) 10 (C) 12 (D) 5
8. A circle passes through the vertices of an equilateral ?ABC. The measure of an angle subtended by
the side AB at the centre of the circle has measure ________
(A) 30 (B) 60 (C) 90 (D) 120
9. If the lengths of the sides of a triangle are in propotion 3:4:5 then the area of triangle is _________sq.
units, where perimeter of the triangle is 144
(A) 64 (B) 364 (C) 564 (D) 864
10. The ratio of radii of two cones is 2:3 and the ratio of their slant heights is 9:4. Then the ratio of their
curved surface area is
(A) 3 :2 (B) 1:2 (C) 1:3 (D) 2:3
11. The probability of getting both heads, when two balanced coins are tossed once is
(A)
1
2
(B)
1
3
(C)
1
4
(D)
1
5
12. The characteristic of the number log 0 003942 = _____
(A) 3 (B) 2 (C) -3 (D) -2
13. A number having digit 2 at unit place then its cube has digit _____ at its units place.
(A) 1 (B) 2 (C) 8 (D) 4
14. 3-years ago, the sum of ages of a father and his son was 40 years. After 2-year, the sum of ages of
the father and his son will be__________
(A)40 (B) 46 (C) 50 (D) 60
15. Correspondence ABC ? ? ? DEF of ?ABC and ?DEF is similarity. If AB + BC + 10 and DE + EF + 12 and
AC = 6 then DF = ______
(A) 6 (B) 5 (C) 7.2 (D) 16
16. In ?ABC, if
1
AB
=
2
AC
=
3
BC
, then m ? C = ________
(A) 90 (B) 30 (C) 60 (D) 45
17. If 7? and 2? are measures of acute angles such than sin 7? = cos2?, then sin 3? - 3 tan? = ______
(A) 1 (B) 0 (C) -1 (D) 1- 3
18. If the angles of elevation of tower from two points a and b (a>b) meters from its foot and the same
side of the tower, have measure 30 and 60, then the height of the tower is __________
(A) ab ? (B) ab (C) ab ? (D)
a
b
19. A chord of (0,5) touches (0,3). Therefore the length of the chord = ____
(A) 8 (B) 10 (C) 7 (D) 6
20. The median class o the frequency distribution given below is________
Class 0-10 10-20 20-30 30-40 40-50
Frequency 7 15 13 17 10
(A) 40-50 (B) 30-40 (C) 20-30 (D) 10-20
Physics
21. Thermal conductivity of standard SWNT along its length is _________
..
watt
mk
(A) 3500 (B) 385 (C) 35000 (D) 35
22. The compound microscope consists of two convex lenses of 5cm and 20cm focal length, then which
of them will be object lens and eye piece?
(A) Object lens with 20cm focal length and eye piece with 5cm focal length
(B) Object lens with 5cm focal length and eye piece with 20cm focal length.
(C) Both should have 20cm focal length.
(D) Both should have 5cm focal length
23. The focal length of an eye lens is changed due to the action of________
(A) Pupil (B) Retina (C) Ciliary muscles (D) Cornea
24. If the five equal pieces of resistance wire having 5O resistance each is connected in parallel, then
their equivalent resistance will be_______
(A)
1
5
O (B) 1 O (C) 5 O (D) 25 O
25. The amount of 2A electric current is passed from 1 minute through one conducting wire. How much
total electric charge will pass through this wire?
(A) 2c (B) 30c (C) 60c (D) 120C
26. At what distance should an object be placed to obtain its real, inverted and of some height as the
object by a convex lens?
(A) At focus (B) Between focus and centre of curvature
(C) At centre of curvature (D) Between optical centre and focus
Page 4
SAT
MATHEMATICS
1. If A={1,2,3,4}, B = {2,4,5,6} , U={1,2,3,4,5,6,7} then A’nB’ =______
(A) ? (B) {1,2,3,4,5,6} (C) {7} (D) {3,4,5,6}
2. An equivalent expression of
5
7 4 5 ?
after rationalizing the denominator is__
(A)
20 5 35
31
?
(B)
20 5 35
129
?
(C)
35 20 5
31
?
(D)
35 20 5
121
?
3. If x-2 is factor of 3x
4
-2x
3
+ 7x
2
– 21x +k then the value of K is
(A) 2 (B) 9 (C) 18 (D) -18
4. Line x + y = 2 passes through the ________________quadrants.
(A) 1
st
and 3
rd
both (B) 2
nd
and 3
rd
both
(C) 3
rd
and 4
th
both (D) 1
st
, 2
nd
and 4
th
all
5. If the measure of the angle of ?ABC are in proportion 1 : 2: 3, then the measures of the smallest
angle is
(A) 30
0
(B) 60
0
(C) 90
0
(D) 120
0
6. ?ABC is an equilateral triangle, Ab=6, The points P,Q and R are midpoints of AB , BC and CA
respectively. The perimeter of PBCR is __________
(A) 18 (B) 15 (C) 9 (D) 12
7. In
m
ABCD, let AM be the altitude corresponding to the base BC and CN the altitude
corresponding to the base AB , If AB = 10cm, AM=6cm and CN=12cm then BC = _______cm.
(A) 20 (B) 10 (C) 12 (D) 5
8. A circle passes through the vertices of an equilateral ?ABC. The measure of an angle subtended by
the side AB at the centre of the circle has measure ________
(A) 30 (B) 60 (C) 90 (D) 120
9. If the lengths of the sides of a triangle are in propotion 3:4:5 then the area of triangle is _________sq.
units, where perimeter of the triangle is 144
(A) 64 (B) 364 (C) 564 (D) 864
10. The ratio of radii of two cones is 2:3 and the ratio of their slant heights is 9:4. Then the ratio of their
curved surface area is
(A) 3 :2 (B) 1:2 (C) 1:3 (D) 2:3
11. The probability of getting both heads, when two balanced coins are tossed once is
(A)
1
2
(B)
1
3
(C)
1
4
(D)
1
5
12. The characteristic of the number log 0 003942 = _____
(A) 3 (B) 2 (C) -3 (D) -2
13. A number having digit 2 at unit place then its cube has digit _____ at its units place.
(A) 1 (B) 2 (C) 8 (D) 4
14. 3-years ago, the sum of ages of a father and his son was 40 years. After 2-year, the sum of ages of
the father and his son will be__________
(A)40 (B) 46 (C) 50 (D) 60
15. Correspondence ABC ? ? ? DEF of ?ABC and ?DEF is similarity. If AB + BC + 10 and DE + EF + 12 and
AC = 6 then DF = ______
(A) 6 (B) 5 (C) 7.2 (D) 16
16. In ?ABC, if
1
AB
=
2
AC
=
3
BC
, then m ? C = ________
(A) 90 (B) 30 (C) 60 (D) 45
17. If 7? and 2? are measures of acute angles such than sin 7? = cos2?, then sin 3? - 3 tan? = ______
(A) 1 (B) 0 (C) -1 (D) 1- 3
18. If the angles of elevation of tower from two points a and b (a>b) meters from its foot and the same
side of the tower, have measure 30 and 60, then the height of the tower is __________
(A) ab ? (B) ab (C) ab ? (D)
a
b
19. A chord of (0,5) touches (0,3). Therefore the length of the chord = ____
(A) 8 (B) 10 (C) 7 (D) 6
20. The median class o the frequency distribution given below is________
Class 0-10 10-20 20-30 30-40 40-50
Frequency 7 15 13 17 10
(A) 40-50 (B) 30-40 (C) 20-30 (D) 10-20
Physics
21. Thermal conductivity of standard SWNT along its length is _________
..
watt
mk
(A) 3500 (B) 385 (C) 35000 (D) 35
22. The compound microscope consists of two convex lenses of 5cm and 20cm focal length, then which
of them will be object lens and eye piece?
(A) Object lens with 20cm focal length and eye piece with 5cm focal length
(B) Object lens with 5cm focal length and eye piece with 20cm focal length.
(C) Both should have 20cm focal length.
(D) Both should have 5cm focal length
23. The focal length of an eye lens is changed due to the action of________
(A) Pupil (B) Retina (C) Ciliary muscles (D) Cornea
24. If the five equal pieces of resistance wire having 5O resistance each is connected in parallel, then
their equivalent resistance will be_______
(A)
1
5
O (B) 1 O (C) 5 O (D) 25 O
25. The amount of 2A electric current is passed from 1 minute through one conducting wire. How much
total electric charge will pass through this wire?
(A) 2c (B) 30c (C) 60c (D) 120C
26. At what distance should an object be placed to obtain its real, inverted and of some height as the
object by a convex lens?
(A) At focus (B) Between focus and centre of curvature
(C) At centre of curvature (D) Between optical centre and focus
27. Velocity of vehicle increases from 5
m
s
to 15
m
s
in 5 second. What is the magnitude of acceleration?
(A)
2
4
m
s
(B) 4
m
s
(C) 2
m
s
(D)
2
2
m
s
28. What is the focal length of a convex lens having power + 5.0 D?
(A) -10 cm (B) -20cm (C) +10cm (D) +20cm
29. 1 Newton = ______dyne
(A) 10
3
(B) 10
4
(C) 10
5
(D) 10
6
30. The increase in velocity of a freely falling body is one second is__________
(A) 9.8 m/s
2
(B) 9.8 m/s (C) -9.8 m/s
2
(D) -9.8 m/s
31. An object is thrown vertically upwards with velocity of 20 m/s. At what height will its kinetic energy
and potential energy be equal? (g = 10m/s
2
)
(A) 10 m (B) 20m (C) 15m (D) 5m
32. Sound corresponding to which frequency is ultrasonic sound?
(A) 30 Hz (B) 300 Hz (C) 3000 Hz (D) 30,000 Hz
33. A cyclist travels 5km in the east direction. Then he travels 12km in the south direction. What is the
magnitude of displacement of the cycle?
(A) 17km (B) 13km (C) 7km (D) zero
Chemistry
34 Howmany Elelctrons are there in chloride ion?
(A) 17 (B) 18 (C) 16 (D) 8
35. Which scientist gave the rule of octet?
(A) Lewis (B) Rayleigh and Ramsey (C) Dalton (D) Dobereiner
36. What is the chemical name of quick lime?
(A) Calcium Oxide ( B) Calcium Carbonate (C) Calcium hydroxide (D) Carbon dioxide
37. Which rays are used to diagnose cancer of esophagus?
(A) Laser (B) Cathod (C) X-Ray (D) r-Ray
Page 5
SAT
MATHEMATICS
1. If A={1,2,3,4}, B = {2,4,5,6} , U={1,2,3,4,5,6,7} then A’nB’ =______
(A) ? (B) {1,2,3,4,5,6} (C) {7} (D) {3,4,5,6}
2. An equivalent expression of
5
7 4 5 ?
after rationalizing the denominator is__
(A)
20 5 35
31
?
(B)
20 5 35
129
?
(C)
35 20 5
31
?
(D)
35 20 5
121
?
3. If x-2 is factor of 3x
4
-2x
3
+ 7x
2
– 21x +k then the value of K is
(A) 2 (B) 9 (C) 18 (D) -18
4. Line x + y = 2 passes through the ________________quadrants.
(A) 1
st
and 3
rd
both (B) 2
nd
and 3
rd
both
(C) 3
rd
and 4
th
both (D) 1
st
, 2
nd
and 4
th
all
5. If the measure of the angle of ?ABC are in proportion 1 : 2: 3, then the measures of the smallest
angle is
(A) 30
0
(B) 60
0
(C) 90
0
(D) 120
0
6. ?ABC is an equilateral triangle, Ab=6, The points P,Q and R are midpoints of AB , BC and CA
respectively. The perimeter of PBCR is __________
(A) 18 (B) 15 (C) 9 (D) 12
7. In
m
ABCD, let AM be the altitude corresponding to the base BC and CN the altitude
corresponding to the base AB , If AB = 10cm, AM=6cm and CN=12cm then BC = _______cm.
(A) 20 (B) 10 (C) 12 (D) 5
8. A circle passes through the vertices of an equilateral ?ABC. The measure of an angle subtended by
the side AB at the centre of the circle has measure ________
(A) 30 (B) 60 (C) 90 (D) 120
9. If the lengths of the sides of a triangle are in propotion 3:4:5 then the area of triangle is _________sq.
units, where perimeter of the triangle is 144
(A) 64 (B) 364 (C) 564 (D) 864
10. The ratio of radii of two cones is 2:3 and the ratio of their slant heights is 9:4. Then the ratio of their
curved surface area is
(A) 3 :2 (B) 1:2 (C) 1:3 (D) 2:3
11. The probability of getting both heads, when two balanced coins are tossed once is
(A)
1
2
(B)
1
3
(C)
1
4
(D)
1
5
12. The characteristic of the number log 0 003942 = _____
(A) 3 (B) 2 (C) -3 (D) -2
13. A number having digit 2 at unit place then its cube has digit _____ at its units place.
(A) 1 (B) 2 (C) 8 (D) 4
14. 3-years ago, the sum of ages of a father and his son was 40 years. After 2-year, the sum of ages of
the father and his son will be__________
(A)40 (B) 46 (C) 50 (D) 60
15. Correspondence ABC ? ? ? DEF of ?ABC and ?DEF is similarity. If AB + BC + 10 and DE + EF + 12 and
AC = 6 then DF = ______
(A) 6 (B) 5 (C) 7.2 (D) 16
16. In ?ABC, if
1
AB
=
2
AC
=
3
BC
, then m ? C = ________
(A) 90 (B) 30 (C) 60 (D) 45
17. If 7? and 2? are measures of acute angles such than sin 7? = cos2?, then sin 3? - 3 tan? = ______
(A) 1 (B) 0 (C) -1 (D) 1- 3
18. If the angles of elevation of tower from two points a and b (a>b) meters from its foot and the same
side of the tower, have measure 30 and 60, then the height of the tower is __________
(A) ab ? (B) ab (C) ab ? (D)
a
b
19. A chord of (0,5) touches (0,3). Therefore the length of the chord = ____
(A) 8 (B) 10 (C) 7 (D) 6
20. The median class o the frequency distribution given below is________
Class 0-10 10-20 20-30 30-40 40-50
Frequency 7 15 13 17 10
(A) 40-50 (B) 30-40 (C) 20-30 (D) 10-20
Physics
21. Thermal conductivity of standard SWNT along its length is _________
..
watt
mk
(A) 3500 (B) 385 (C) 35000 (D) 35
22. The compound microscope consists of two convex lenses of 5cm and 20cm focal length, then which
of them will be object lens and eye piece?
(A) Object lens with 20cm focal length and eye piece with 5cm focal length
(B) Object lens with 5cm focal length and eye piece with 20cm focal length.
(C) Both should have 20cm focal length.
(D) Both should have 5cm focal length
23. The focal length of an eye lens is changed due to the action of________
(A) Pupil (B) Retina (C) Ciliary muscles (D) Cornea
24. If the five equal pieces of resistance wire having 5O resistance each is connected in parallel, then
their equivalent resistance will be_______
(A)
1
5
O (B) 1 O (C) 5 O (D) 25 O
25. The amount of 2A electric current is passed from 1 minute through one conducting wire. How much
total electric charge will pass through this wire?
(A) 2c (B) 30c (C) 60c (D) 120C
26. At what distance should an object be placed to obtain its real, inverted and of some height as the
object by a convex lens?
(A) At focus (B) Between focus and centre of curvature
(C) At centre of curvature (D) Between optical centre and focus
27. Velocity of vehicle increases from 5
m
s
to 15
m
s
in 5 second. What is the magnitude of acceleration?
(A)
2
4
m
s
(B) 4
m
s
(C) 2
m
s
(D)
2
2
m
s
28. What is the focal length of a convex lens having power + 5.0 D?
(A) -10 cm (B) -20cm (C) +10cm (D) +20cm
29. 1 Newton = ______dyne
(A) 10
3
(B) 10
4
(C) 10
5
(D) 10
6
30. The increase in velocity of a freely falling body is one second is__________
(A) 9.8 m/s
2
(B) 9.8 m/s (C) -9.8 m/s
2
(D) -9.8 m/s
31. An object is thrown vertically upwards with velocity of 20 m/s. At what height will its kinetic energy
and potential energy be equal? (g = 10m/s
2
)
(A) 10 m (B) 20m (C) 15m (D) 5m
32. Sound corresponding to which frequency is ultrasonic sound?
(A) 30 Hz (B) 300 Hz (C) 3000 Hz (D) 30,000 Hz
33. A cyclist travels 5km in the east direction. Then he travels 12km in the south direction. What is the
magnitude of displacement of the cycle?
(A) 17km (B) 13km (C) 7km (D) zero
Chemistry
34 Howmany Elelctrons are there in chloride ion?
(A) 17 (B) 18 (C) 16 (D) 8
35. Which scientist gave the rule of octet?
(A) Lewis (B) Rayleigh and Ramsey (C) Dalton (D) Dobereiner
36. What is the chemical name of quick lime?
(A) Calcium Oxide ( B) Calcium Carbonate (C) Calcium hydroxide (D) Carbon dioxide
37. Which rays are used to diagnose cancer of esophagus?
(A) Laser (B) Cathod (C) X-Ray (D) r-Ray
38. 250 C = _______K
(A) 273 (B) 248 (C) 298 (D) -298
39. Which of the following shows the Tyndall effect?
(A) Solution of common salt (B) Milk
(C) Lemon Juice (D) Solution of copper sulphate
40. The PH-value of bite of honey-bee is
(A)7 (B) More than 7 (C) Less than 7 (D) of any value
41. To prepare 100 ml, 2M, NaOH solution, ______gram of NaOH will be required?
(A) 40gm (B) 8gm (C) 16gm (D) 24gm
42. What is the ratio of iron, chromium and nickel in stainless steel?
(A) 7:2:1 (B) 7:1:2 (C) 7:3:1 (D) 1:2:7
43. Which metal is mixed with gold to prepare its ornaments?
(A) Platinum (B) Nickel (C) Copper or Sliver (D) Zinc
44. The full form of PABA is_______________
(A) Para Amino Boric Acid (B) Pttasium Amino Basic Acid
(C) Para Amino Benzoic Acid (D) Para Amino Benzoic Acetate
45. Where ammonia is not used?
(A) Nylon fibers (B) Fertilizers (C) Explosives (D) Welding
46. What is the chemical formula of oleum?
(A) H
2
SO
4
(B) H
2
SO
3
(C) H
2
S
2
O
7
(D) H
2
S
2
O
3
Biology
47. Give the name of scientist DNA molecules.
(A) Robert Brwon (B) Rober Hook (C) Leuvan Hook (D) Watson and crick
48. Which of the Plant tissue shows the pectin deposition on cell wall?
(A) Collenchyma (B) Parenchyma (C) Sclerenchyma (D) Chloren chyma
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