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Chemistry

Chemistry
The weight of 6.023 × 1022 atoms of carbon is

120 gms
12 gms
0.12 gms
1.2 gms

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Chemistry
Which is abundant in Gobar gas?

Oxygen
Carbon dioxide
Methane
Hydrogen

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Chemistry
The metal used to galvanise iron to protect it from rusting is

Zinc
Lead
Chromium
Antimony

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Chemistry
Cloud is a colloidal dispersion of

Fog in a dispersion medium of water
Air in a dispersion medium of water
Water drops in a dispersion medium of air
Mist in a dispersion medium of air

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Chemistry
The acid rain destroys vegetations because it contains

Sulphuric acid
Carbon monoxide
Nitric acid
Ozone

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Chemistry
Iron rusts quickly in

Distilled water
Sea water
River water
Rain water

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MORE MCQ ON Chemistry

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