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Chemistry

Chemistry
Detergents used for cleaning clothes and utensils contain

Bicarbonates
Bismuthates
Sulphonates
Nitrates

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Chemistry
Which one of the following is known as the 'brown coal'?

Anthracite
Bituminous
Lignite
Coke

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Chemistry
The main chemical constituent of the oil of cardamom which is responsible for flavour of this oil is

geraniol
engenol
cineole
limonene

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Chemistry
The mineral containing both magnesium and calcium is

dolomite
calcite
magnesite
carnallite

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Chemistry
Brass is a

Compound
Heterogeneous mixture
Element
Homogeneous mixture

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Chemistry
The percentage of Nitrogen in Air is

0.94
78.03
85.02
0.03

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MORE MCQ ON Chemistry

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