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Chemistry

Chemistry
Supersonic jet causes pollution by thinning of

O3 layer
SO2 layer
O 2 layer
CO2 layer

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Chemistry
The gas used in the manufacture of vanaspati from vegetable oil is

nitrogen
hydrogen
carbon dioxide
oxygen

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Chemistry
The metals commonly used for electroplating are

Gold, Sodium and Potassium
Nickel, Lead and Chromium
Gold, Sodium and Chromium
Chromium, Copper and Nickel

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Chemistry
The most abundant constituent of atmospheric air is :

Hydrogen
Nitrogen
Carbon
Oxygen

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Chemistry
The constituents of automobile exhaust that can cause cancer is/are :

Lead
Oxides of nitrogen
Polycyclic hydrocarbons
Carbon monoxide

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Chemistry
Which is not a green house gas ?

N2O
CH4
Chlorofluorocarbons
CO2

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MORE MCQ ON Chemistry

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