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Chemistry

Chemistry
Which one of the following is found in Vinegar ?

Butyric acid
Propionic acid
Formic acid
Acetic acid

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Chemistry
Brass is a

Element
Compound
Heterogeneous mixture
Homogeneous mixture

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Chemistry
Which colour is produce by Arsenic during flame test

Red
Green
Crimson
Blue

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Chemistry
The most abundant rare gas in the atmosphere is

He
Ne
Xe
Ar

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Chemistry
Philosopher’s wool is chemically

Magnesium oxide
Aluminium oxide
Calcium oxide
Zinc oxide

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Chemistry
The name of plastic polymer from which combs, toys, bowls etc., can be made, is

Metallic polysulphides
Polystyrene
Polyurethane
Teflon

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