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Chemistry

Chemistry
An example of replenishable energy source is–

Biomass
Petroleum
Coal
Lignite

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Chemistry
Hard water and soft water can be distinguished by using

Dilute acid
Ordinary soap
Liquid soap
Detergent

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Chemistry
The nucleus of a hydrogen atom consists of

1 neutron only
1 electron only
1 proton + 2 neutron
1 proton only

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

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Chemistry
Which of the following is an iron ore ?

Lignite
Bauxite
Nitrite
Magnetite

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Chemistry
Basicity of boric acid, H3BO3 is

4
5
2
3

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MORE MCQ ON Chemistry

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