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Chemistry

Chemistry
The gas used for artificial fruit ripening of green fruit is

Acetylene
Methane
Ethane
Ethylene

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Chemistry
Muscle fatigue is caused by the accumulation of :

Uric acid
Lactic acid
Pyruvic acid
Oxalacetic acid

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Chemistry
Basicity of boric acid, H3BO3 is

3
4
2
5

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Chemistry
One of the following is used to dissolve noble metals. That is

Sulphuric acid
Nitric acid
Aqua ragia
Hydrochloric acid

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Chemistry
The main buffer system of the human blood is

H2CO3 - CO32-
H2CO3 - HCO3
CH3COOH - CH3COO-
NH2CONH2 - NH2CONH+

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Chemistry
Commercial nitric acid is coloured because it contains dissolved :

Nitrous oxide
Coloured impurities
Oxygen
Nitrogen dioxide

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MORE MCQ ON Chemistry

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