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Chemistry

Chemistry
Which one out of the following helps in burning ?

Carbon dioxide
Oxygen
Nitrogen
Carbon monoxide

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Chemistry
Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.(A) Arsenic (B) Sorbitol (C) Fluoride (D) Formaldehyde (E) Uranium

A, B, C, D and E
B, D and E
A, C and E
A and C

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Chemistry
Ultra purification of a metal is done by :

Slugging
Smelting
Zone melting
Leaching

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Chemistry
Bee sting contains

A corrosive liquid
An alkaline liquid
A salt solution
An acidic liquid

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Chemistry
Formation of ozone hole is maximum over

Antarctica
Africa
India
Europe

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Chemistry
Peroxyacetyl nitrate is a

Secondary pollutant
Vitamin
Acidic dye
Plant hormone

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MORE MCQ ON Chemistry

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