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Chemistry

Chemistry
Soap is prepared by boiling caustic soda with

Alcohol
Kerosene oil
Fats
Glycerine

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Chemistry
Which of the following gases is present under pressure in soft drinks?

Oxygen
Carbon dioxide
Nitrous oxide
Nitrogen

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Chemistry
The depletion of Ozone layer is mainly due to

Aviation fuels
Radioactive rays
Volcanic eruptions
Chlorofluorocarbons

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Chemistry
Which of the following is used as a lubricant in heavy machines?

Graphite
Sulphur
Phosphorus
Bauxite

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Chemistry
An element of atomic no. 29 belongs to

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

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Chemistry
The metal used to galvanise iron to protect it from rusting is

Zinc
Lead
Chromium
Antimony

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MORE MCQ ON Chemistry

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