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Chemistry

Chemistry
The material used in the manufacture of lead pencil is

Carbon
Mica
Lead
Graphite

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Chemistry
Highest percentage of carbon is found in which form of coal?

Lignite
Bituminous
Peat
Anthracite

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Chemistry
The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of

a condensation reaction
an elimination reaction
an addition reaction
an oxidation reaction

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Chemistry
Most poisonous pollutant in water is

Arsenic
Zinc
Detergent
Phosphate

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Chemistry
When iron rusts, its weight

Remains the same
First increases and then decreases
Increases
Decreases

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Chemistry
The National Chemical Laboratory (India) is located in

Bangaluru
Mumbai
Hyderabad
Pune

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MORE MCQ ON Chemistry

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