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Chemistry

Chemistry
Ozone depletion in the stratosphere is mainly caused by

Chlorogluorocarbons
NO
SO2
NO2

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Chemistry
Iodine value is used to estimate

Unsaturation in oil
Hydroxyl groups in oil
Carboxylic groups in oil
Alkali content in oil

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Chemistry
The weight of 6.023 × 1022 atoms of carbon is

0.12 gms
120 gms
12 gms
1.2 gms

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

Ozonolysis
Hydrogenation
Hydrolysis
Oxidation

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Chemistry
The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are

Sodium Chloride
Silver Iodide
Dry ice or frozen carbon dioxide
All listed here

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Chemistry
Photo-oxidation process is initiated by

Heat
Oxygen
Light
Catalyst

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MORE MCQ ON Chemistry

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