set 3 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
(a) Neon
(b) Xenon
(c) Argon
(d) Nitrous Oxide
The correct answers to the above question in:
Answer: (b)
Practice alloys, carbon & its various forms, hydrogen & compounds, sulphur, nitrogen, halogen & inert gases (set 3) Online Quiz
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Read more chemistry gk quiz Based General Science Questions and Answers
Question : 1
How much carbon does steel contain?
a) Zero
b) 10-50%
c) 0.1-2%
d) 7-10%
Answer »Answer: (c)
Question : 2
One mole of Hydrogen gas burns in excess of Oxygen to give 290 kJ of heat. What is the amount of heat produced when 4g of Hydrogen gas is burnt under the same conditions?
a) 1160 kg
b) 580 kg
c) 145 kg
d) 290 kg
Answer »Answer: (b)
Question : 3
Brass gets fade colour in air due to the presence of
a) Nitrogen
b) Carbon dioxide
c) Oxygen
d) Hydrogen sulphide
Answer »Answer: (d)
Question : 4
The substance used as moderator and coolant both, in nuclear reactors is
a) Liquid Hydrogen
b) Liquid Ammonia
c) Ordinary water
d) Heavy water
Answer »Answer: (d)
Question : 5
Steel is further processed to obtain stainless steel by adding some element. Which one of the following is not used for this purpose?
a) Nickel
b) Manganese
c) Carbon
d) Silicon
Answer »Answer: (d)
Question : 6
Which one of the following mixture of gas is used by the deep sea divers?
a) Mixture of Helium-Nitrogen
b) Mixture of Oxygen-Acetylene
c) Mixture of Helium-Oxygen
d) Mixture of Oxygen-Hydrogen
Answer »Answer: (c)
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