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Chemistry

Chemistry
When formaldehyde and potassium hydroxide are heated, we get

Methane
Methyl alcohol
Acetylene
Ethyl formate

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Chemistry
Phosphorus is kept in water because

Its critical temperature is high
Its ignition temperature is very high
Its critical temperature is low
Its ignition temperature is very low

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Chemistry
Which of the following is used in making smoke bombs?

Sulphur
Phosphorus
Carbon
Hydrogen

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Chemistry
Which of the following is not a natural source of hydrocarbon?

Coal
Natural Gas
Petroleum
Mica

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Chemistry
Normal rainwater has a pH level of

5.6
6.3
8.3
3.2

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Chemistry
Tar roads get damaged if there is

Heavy traffic
Stagnation of water on road
No sloping
No maintenance

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MORE MCQ ON Chemistry

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