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Chemistry

Chemistry
The metal that is usually extracted from sea water is

K
Ca
Mg
Na

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Chemistry
Ozone consists of

Hydrogen and Carbon
Oxygen only
Oxygen and Nitrogen
Oxygen and Carbon

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Chemistry
Baking soda is :

Potassium carbonate
Sodium bicarbonate
Sodium hydroxide
Sodium carbonate

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Chemistry
The quality of petrol is expressed in terms of

Added unlead compounds
Cetane number
Gold number
Octane number

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Chemistry
A fertile soil is likely to have a pH of

14
3
43989
9

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Chemistry
Natural rubber is a polymer of

Propene
Isoprene
Vinyl acetate
Styrene

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MORE MCQ ON Chemistry

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