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Chemistry

Chemistry
Which one of the following is an example of a gel ?

Face cream
Milk
Cheese
Shaving cream

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Chemistry
Which variety of coal contains recognisable traces of the original plant material ?

Bitumen
Peat
Lignite
Anthracite

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Chemistry
The percentage of oxygen in air is approximately

1
0.21
0.78
0.01

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Chemistry
The substance most commonly used as a food preservative is

Acetic acid
Sodium carbonate
Sodium salt of benzoic acid
Tartaric acid

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Chemistry
Quartz is made of

Calcium Sulphate
Calcium Silicate
Sodium Silicate
Sodium Sulphate

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Chemistry
Which of the following is used to iodise common salt ?

Potassium iodide
Iodine
Potassium iodate
Sodium iodide

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MORE MCQ ON Chemistry

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