alloys, carbon & its various forms, hydrogen & compounds, sulphur, nitrogen, halogen & inert gases - Category wise Question and Answer Practice Test with Solutions

alloys, carbon & its various forms, hydrogen & compounds, sulphur, nitrogen, halogen & inert gases PRACTICE TEST [4 - EXERCISES]

set 1

set 2

set 3

set 4

Question : 1 [UPPCS (Mains) 2010]

Buckminster Fullerene is

a) None of the above

b) A form of carbon compound of clusters of 60 carbon atoms bond together in polyhedral structure composed of pentagons or hexagons

c) A polymer of fluorine

d) An isotope of carbon heavier than C14

Answer: (b)

Question : 2 [PCS (Pre) 2010]

Chemically Dry Ice is

a) Solid carbon dioxide

b) Solid sulphur

c) Ice made from distilled water

d) Mixture of ice and common salt

Answer: (a)

Question : 3 [RAS/RTS (Pre) 2007]

Percentage amount (by volume) of which one of the following gas is lowest in the atmosphere?

a) Carbon dioxide

b) Nitrogen

c) Argon

d) Oxygen

Answer: (a)

Question : 4 [MPPCS (Pre) 2017]

Which lubricant is used for heavy machines?

a) Silicon oil

b) Bauxite

c) Phosphorus

d) Graphite

Answer: (d)

Question : 5 [PSC (Pre) 2019]

Consider these statements and choose the right answer from counterfeit.
Statement (A):
Normally it has been seen that iron goods covered with a brown powder called rust when they are unsheltered in the atmosphere.
Statement (R):
Rust or the brown powder is the result of deposition Tannin.
Code

a) (A) is false, but (R) is trues

b) (A) is true, but (R) is false

c) Both (A) and (R) are true and (R) is the correct explanation of (A)

d) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

Answer: (b)

IMPORTANT general science mcq EXERCISES
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