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Chemistry

Chemistry
Which of the following is an antidiabatic drug?

Aspirin
Chloroquine
Penicillin
Insulin

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Chemistry
Wood spirit is

Methyl alcohol
Ethyl alcohol
Propyl alcohol
Butyl alcohol

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Chemistry
What is the covalency of nitrogen in ammonia molecule

2
3
5
4

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Chemistry
The rusting of iron is a/an

Electrochemical change
None of these
Electrical change
Physical change

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Chemistry
The gas causing acid rain in an industrial area is

Methane
Carbon monoxide
Sulphur dioxide
Carbon dioxide

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Chemistry
When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is

Carbon dioxide
Hydrogen
Oxygen
All of them

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