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Chemistry

Chemistry
A colloidal system in which a liquid is dispersed in a liquid is called

Gel
Sol
Precipitate
Emulsion

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Chemistry
Which of the following fibres catches fire least ?

Terricot
Nylon
Cotton
Rayon

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Chemistry
Vinegar is an aqueous solution of

Hydrochloric acid
Citric acid
Acetic acid
Oxalic acid

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Chemistry
The compound that has the least value for octane number is :

N-heptane
2,2-dimethyl hexane
2-methyl heptane
Iso-octane

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Chemistry
The monomers of dacron are

Decane and decanol
Ethylene glygol and phthalic acid
Ethylene glycol and terephthalic acid
Decanone and decanol

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Chemistry
Pyrethrin used in mosquito coil is obtained from

A bacterium
A fungus
An insect
A seed plant

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