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Chemistry

Chemistry
Supersonic jet causes pollution by thinning of

SO2 layer
O3 layer
CO2 layer
O 2 layer

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Chemistry
Spirit in contact with body gives cool sensation because it is :

A good conductor
Transparent
Highly volatile
Liquid

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Chemistry
Which one is the simplest aromatic hydrocarbon

Aspirin
Benzene
Chloride
Picric acid

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Chemistry
Cement is made hard with

Dehydration
Polymerisation
Hydration and dissociation of water
Dissociation of water

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Chemistry
The buffer action of blood is due to the presence of

[HCO3]– and H2CO3
CI– and [HCO3]–
HCI and NaCI
CI– and [CO3]2–

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Chemistry
Alcohol prepared by the distillation of wood is :

Methyl alcohol
Ethyl alcohol
Propyl alcohol
Glycerol

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MORE MCQ ON Chemistry

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