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Chemistry

Chemistry
Silica gel is a

Flavouring agent
Moisturizer
Delicious food
Drying agent

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Chemistry
Which one of the following is not a fertilizer?

Ammonium sulphate
Potassium nitrate
Calcium ammonium nitrate
Calcium sulphate

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Chemistry
________ is a by product of sewage treatment and can be decomposed to produce biogas

Sewage
Scum
Sludge
Sewer

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Chemistry
The most suitable vessel for storing concentrated sulphuric acid is

Earthen vessel
Glass vessel
Copper vessel
Aluminium vessel

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Chemistry
The acid which is secreted by the glands in the stomach wall is

Nitric acid
Phosphoric acid
Sulphuric acid
Hydrochloric acid

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Chemistry
Alum is used as

A purifier for water
A fertilizer
An analgesic
A disinfectant

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