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Chemistry

Chemistry
The substance that is added to make natural rubber strong and more bouncy is

Sponge
Polythene
Sulphur
Chlorine

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Chemistry
What is the atomic number of mercury

80
41
63
32

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Chemistry
Basicity of boric acid, H3BO3 is

5
3
2
4

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Chemistry
The presence of Cobalt in Vitamin B12 was established for the first time by

Borax-Bead test
Hydrolysis test
Sodium Nitroprusside test
Spectroscopy

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Chemistry
Among the following the hardest metal is

Platinum
Tungsten
Gold
Iron

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Chemistry
The most suitable vessel for storing concentrated sulphuric acid is

Glass vessel
Copper vessel
Earthen vessel
Aluminium vessel

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MORE MCQ ON Chemistry

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