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Chemistry

Chemistry
Isobars are lines joining places having equal

Population
Pressure
Height above sea-level
Rainfall

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Chemistry
The gas that is used in the manufacture of vanaspati ghee is :

Carbon dioxide
Hydrogen
Nitrogen
Oxygen

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Chemistry
In vulcanisation process, rubber can be hardened by adding

Alcohol
Silicon
Nitrogen
Sulphur

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Chemistry
Rock salt is a mineral containing

Sodium
Potassium
Magnesium
Iron

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Chemistry
Which one of the following elements is used in the manufacture of safety matches?

Graphite
Phosphorus
Sodium
Silicon

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Chemistry
The chemical used in embalming biological materials is

Ethylene glycol
Gaseous formaldehyde
Formaldehyde in methanol
Formaldehyde in water

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MORE MCQ ON Chemistry

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