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Chemistry

Chemistry
Bleaching powder is used in drinking water as a/an

Antibiotic
Coagulant
Antiseptic
Disinfectant

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Chemistry
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in

Fluorescence
Absorption spectra
Emission spectra
Raman spectra

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Chemistry
The gas involved in Bhopal incident was

Hydrogen sulphide
Methyl chloride
Methyl isocyanide
Nitrogen dioxide

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Chemistry
CNG used in automobiles to check pollution, mainly consists of

CH4
CO2
N2
H2

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Chemistry
The chemical bahaviour of an atom depends upon

The number of protons in its nucleus
The number of electrons orbiting around the nucleus
The number of nucleons in the nucleus
The number of neutrons in the nucleus

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Chemistry
The mineral containing both magnesium and calcium is

calcite
carnallite
dolomite
magnesite

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MORE MCQ ON Chemistry

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