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Chemistry

Chemistry
Curd is sour due to presenceof

Tartaric acid
Oxalic acid
Lactic acid
Acetic acid

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Chemistry
Commonly used antiseptic 'Dettol' is a mixture of

Phenol + terepineol
Chloroxylenol + terepineol
O-cresol + terepineol
O-chlorophenoxylenol + terepineol

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Chemistry
Global warming is mainly due to accumulation of

Oxides of nitrogen
Carbon dioxide
Oxides of sulphur
Carbon monoxide

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Chemistry
Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be

2 : 16 : 2
2 : 16 : 1
1 : 1 : 1
1 : 16 : 2

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Chemistry
Helium gas is filled in ballons because

It is a noble gas
Its atomic number is 2
It is lighter than air
It is one of the constitutents of water

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Chemistry
The most common cause of pollution of air is

Smoke
Sulphur dioxide
Carbon dioxide
Carbon monoxide

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MORE MCQ ON Chemistry

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