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Chemistry

Chemistry
Benzene cannot undergo :

Substitution
Oxidation
Elimination
Addition

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Chemistry
The percentage of oxygen in air is approximately

0.78
1
0.21
0.01

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Chemistry
The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

0.5 gram of molecule
1 gram of molecule
10 gram of molecule
5 gram of molecule

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

Sulphuric acid
Hydrochloric acid
Nitric acid
Aqua ragia

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Chemistry
Non-stick kitchenwares are coated with

Silicon
PVC
Graphite
Teflon

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Chemistry
The chief source for the production of nitrogeneous fertilizers is :

Ammonia
Nitric acid
Nitrogen
Nitrogen dioxide

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MORE MCQ ON Chemistry

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