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General Science - Questions and Answers

Practice questions on General Science.

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866. Chlorophyll is a naturally occuring chelate compound in which the central metal is :
A. iron
B. copper
C. calcium
D. magnesium
Explanation:
867. Standard 18-carat gold sold in the market contains :
A. 82 parts gold and 18 parts other metals
B. 18 parts gold and 82 parts other metals
C. 18 parts gold and 6 parts other metals
D. 9 parts gold and 16 parts other metals
Explanation:
868. Rubber is coagulated from latex by adding
A. hydrochloric acid
B. acetic acid
C. sulphuric acid
D. carbonic acid
Explanation:
869. The gas usually filled in the electric bulb is :
A. hydrogen
B. oxygen
C. nitrogen
D. carbon dioxide
Explanation:
870. Which one of the following does not wet the walls of the glass vessel in which it is kept ?
A. Water
B. Alcohol
C. Mercury
D. None of these
Explanation: