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General Knowledge - General Science

Exercise : General Science - Elements and Metals
51.
Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?
Television
Refrigerator
Tube light
Cooking gas
Answer: Option
Explanation:
No answer description is available. Let's discuss.
52.
Balloons are filled with
nitrogen
helium
oxygen
argon
Answer: Option
Explanation:
No answer description is available. Let's discuss.
53.
Which of the following does not contain a coinage metal?
Silver and Gold
Zinc and Gold
Copper and Silver
Copper and Gold
Answer: Option
Explanation:
No answer description is available. Let's discuss.
54.
Which metal pollute the air of a big city?
Copper
Chromium
Lead
Cadmium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
55.
Bell metal is an alloy of
nickel and copper
zinc and copper
brass and nickel
tin and copper
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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