General Knowledge Question Answer: Chemistry GK Questions and Answers

General Knowledge Chemistry Questions, Chemistry Quiz for Competitive Exams, Important Chemistry MCQs for GK

Q. The gas used for inflating the tyres of aeroplanes is -
1) hydrogen
2) helium
3) nitrogen
4) neon

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Q. 'Red ink' is prepared from -
1) phenol
2) aniline
3) congo Red
4) eosin

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Q. The compound associated with Bhopal Gas Tragedy was -
1) Methyl alcohol
2) Phosphazene
3) Methyl isocyanate
4) Methylamine

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Q. The chemical used as fixer in the photography is -
1) sodium thiosulphate
2) borax
3) sodium tetrathionate
4) Ammonium molybdate

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Q. Percentagewise which gas is the most abundant in the atmosphere?
1) Nitrogen
2) Oxygen
3) Hydrogen
4) Carbon dioxide

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Q. Which one of the following salts should not be used as dining table salt?
1) Iodized salt
2) Sea salt
3) Rock salt
4) Processed common salt

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Q. Which gas is released when water is added to bleaching powder?
1) Chlorine
2) Hydrogen
3) Oxygen
4) Carbon dioxide

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Q. The number of neutrons in an atom is equal to the :
1) Number of electrons
2) Mass number
3) Mass number - Atomic number
4) Atomic number

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Q. How many atoms are present in a (NH4)2SO4 molecule?
1) 15
2) 13
3) 14
4) 12

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Q. In Mendeleev's periodic table, the properties of the elements are considered a periodic function of their :
1) Atomic number
2) Atomic mass
3) Atomic size
4) Ionization enthalpy

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