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Chemistry

Chemistry
Which of the following is a monoatomic gas?

Nitrogen
Fluorine
Neon
Oxygen

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Chemistry
Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process :

Hydrogenation
Oxidation
Hydrolysis
Ozonolysis

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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
Piped Natural Gas (PNG) is used for

Cooking
Anaesthesia
Welding
Mining

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Chemistry
Catalyst is a substance which

Increases the rate of the reaction
Has no action on the rate of the reaction
Decreases the rate of reaction
None of these

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Chemistry
The product, 9-nitroanthracene is obtained from anthracene by the action of

Nitric acid and ethyl alcohol
Nitric acid in excess
Nitric acid and acetic acid
Nitric acid and acetic anhydride

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