SSC General science MCQ GK Questions and Answers

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SSC UPSC general science MCQ GK Questions and Answers for all competitive exams UPSC SSC Bank Exams MCQ and Entrance exams Preparation Online free Gk Questions practice

 

31.
Synthetic detergents are
1.sodium salts of fatty acids
2.able to produce lather freely with hard water
3.calcium salts of fatty acids
4.a mixture of sodium slats of aromatic and aliphatic sulphonic acids. The correct statements are:

a
1 and 4
b
1 and 2
c
3 and 4
d
2 and 4

32.
Which of the following is not a compound of calcium?

a
Marble
b
Gypsum
c
Chalk
d
Molybdenum

33.
The minor planets revolving between the orbits of Mars and Jupiter are called

a
Meteors
b
Novas
c
Asteroids
d
Comets

34.
Who among the following is referred to as 'father of gene therapy'?

a
William F.Anderson
b
Robert G.Edmards
c
Richard F.Heck
d
Theodor Leber

35.
Alcohol causes
1.cirrhosis of the liver
2.acute glomerulonephritis
3.cardiomyopathy
4.cancer of the mouth, pharynx, larynx and oesophagus

a
1, 2, 3 and 4
b
1, 3 and 4
c
1, 2 and 4
d
2, 3 and 4

36.
1 KB (kilobyte) and 1 MB (megabyte) are respectively equal to

a
1024 bytes and 100 kilobytes
b
1024 bytes and 1000 kilobytes
c
1000 bytes and 10000 bytes
d
1000 bytes and 100 kilobytes

37.
Gasoline is
1.Same as diesel oil
2.Same as petrol
3.Obtained from natural gas
4.Obtained from crude oil The correct answers are:

a
1 and 3
b
2 and 4
c
1 and 4
d
3 and 4

38.
Plants absorb dissolved nitrates from soil and convert them into

a
Free nitrogen
b
Ammonia
c
Urea
d
Proteins

39.
Graphite and heavy water are two common moderators used in a nuclear reactor. The function of the moderator is to

a
Arrest the chain reaction
b
Slow down neutrons
c
Absorb neutrons
d
Cool the reactor

40.
Human blood contains --- percentage of plasma.

a
40%
b
35%
c
50%
d
65%

41.
Green plants evolve oxygen during the day rather than carbon dioxide. This means that:

a
green plants respire during the day also but the rate of respiration is very low
b
green plants respire only at night
c
the rate of photosynthesis is much higher than the rate of respiration.
d
green plants do not respire

42.
Which of the following nitrogenous excretory products can be excreted in solid form?

a
Urea
b
Uric acid
c
Ammonia
d
Creatinine

43.
For a solution of volatile liquids, the partial vapour pressure of each component in solution is directly proportional to its

a
Mole fraction
b
Molarity
c
Molality
d
Normality

44.
Consider the terms in lists 1 and 2 below. List I (Types of rocks) List II (Rocks) A. Sendimentary
1.Chalk B. Metamorphic
2.Granite C. Igneous
3.Marble D. Organic
4.Dolomite Correct Codes are: A B C D

a
4 2 3 1
b
4 3 1 2
c
4 3 2 1
d
1 3 2 4

45.
The only movable bone in the skull is

a
maxilla
b
mandible
c
nasal
d
frontoparietal

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