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Chemistry

Chemistry
Which gas is used for converting vegetable oils into saturated fats ?

H2
Cl2
O2
SO2

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Chemistry
Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ?

Sulphur dioxide
Carbon dioxide
Chlorofluorocarbon
Nitrous oxide

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Chemistry
Which type of fire extinguisher is used for petroleum fire ?

Soda acid type
None of these
Powder type
Foam type

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Chemistry
Which of the following is not a precious/semi-precious stone?

Emerald
Ruby
Sapphire
Pearl

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Chemistry
The material which can be deformed permanently by heat and pressure is called a

thermoplastic
chemical compound
polymer
thermoset

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Chemistry
What is the maximum Water Vapour content in the atmosphere?

5 to 6 per cent
4 to 5 per cent
3 to 4 per cent
2 to 3 per cent

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MORE MCQ ON Chemistry

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