Reaction of alcohol, with a carboxylic acid is known as
1 Substitution Reaction
2 Addition reaction
3 Esterification
4 Hydrogenation
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Which of the following gases is used as an illuminant in lamps used by hawkers? 1 Methane 2 Ethylene 3 Acetylene 4 Hydgrogen
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Epoxy resins are used as 1 Moth repellants 2 Insecticides 3 Detergents 4 Adhesives
How many naval staffs can occupy arihant?
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The property of a substance to absorb moisture from the air on exposure is called 1 Osmosis 2 Dessication 3 Efflorescence 4 Deliquescence
which of the following fibers is generally preferred for making gauze and lint? 1 Cotton 2 Rayon 3 Nylon 4 Terylene
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Which of the following is used as a coolant in nuclear reactors? 1 Heavy water 2 Cadmium 3 Liquid sodium 4 None of these
2 Answers WBCS West Bengal Civil Service,
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When did india conduct three under ground nuclear tests?