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Chemistry

Chemistry
An element of atomic no. 29 belongs to

P-block
S-block
F-block
D-block

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

Carbon dioxide
Oxygen
All of them
Hydrogen

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Chemistry
Bauxite is used as raw material by which industry ?

Iron
Steel
Aluminium
Gold

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Chemistry
Limestone is a raw material used by which industry?

Petrochemicals
Cement
Fertilizers
Aluminium

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Chemistry
The function of skimming tank in sewage treatment is to remove

Suspended solids
Gritty substances
Inorganic substances
Oil and fatty substances

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Chemistry
The depletion of Ozone layer is mainly due to

Aviation fuels
Volcanic eruptions
Radioactive rays
Chlorofluorocarbons

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MORE MCQ ON Chemistry

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