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Chemistry

Chemistry
A fertile soil is likely to have a pH of

9
43989
14
3

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Chemistry
Many people died in London in 1952 as result of air pollution producing

Fog
Mist
Sleet
Smog

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Chemistry
Which of the following type of coal has the lowest proportion of volatile matter ?

Peat
Lignite
Bituminous
Anthracite

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Chemistry
The element absorbed both in cation and anion form is

Calcium
Sulphur
Phosphorus
Nitrogen

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Chemistry
Colour imparted to the Bunsen flame by strontium salt is

Apple-green
Crimson red
Brick red
Bluish green

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Chemistry
The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas

Will be doubled
Remains unchanged
Will increase four-fold
Will be reduced to half

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