set 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 4 EXERCISES
The following question based on alloys, carbon & its various forms, hydrogen & compounds, sulphur, nitrogen, halogen & inert gases topic of general science mcq
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)
The correct answers to the above question in:
Answer: (b)
Practice alloys, carbon & its various forms, hydrogen & compounds, sulphur, nitrogen, halogen & inert gases (set 1) Online Quiz
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Read more chemistry gk quiz Based General Science Questions and Answers
Question : 1
The important metal used with iron to make it rust free
a) Tin
b) Chromium
c) Aluminium
d) Carbon
Answer »Answer: (b)
Question : 2
Which one of the following metals does not form amalgam?
a) Iron
b) Magnesium
c) Zinc
d) Copper
Answer »Answer: (a)
Question : 4
Which lubricant is used for heavy machines?
a) Silicon oil
b) Bauxite
c) Phosphorus
d) Graphite
Answer »Answer: (d)
Question : 5
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 »Answer: (a)
Question : 6
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 »Answer: (a)
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