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Chemistry

Chemistry
The scientist who experimentally proved the existance of positron is

Anderson
Bohr
Fermi
Bethe

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Chemistry
Candle is a mixture of

Bees wax and paraffin wax
Bees wax and stearic acid
Paraffin was and stearic acid
Higher fatty acids and stearic acid

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Chemistry
The maximum number of covalent formed by nitrogen is

2
1
4
3

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Chemistry
The heat value of combustion of Gasoline is

47000 kJ/kg
39400 kJ/kg
14600 kJ/kg
12600 kJ/kg

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Chemistry
Which of the following is used to remove ink and rust stains on cloth?

Oxalic acid
Kerosene oil
Ether
Alcohol

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Chemistry
Vulcanization of rubber is carried out by adding

Ozone
Sulphur
Carbon
Phosphorus

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MORE MCQ ON Chemistry

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