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Chemistry

Chemistry
The gas used for artificial fruit ripening of green fruit is

Ethane
Ethylene
Acetylene
Methane

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Chemistry
Spontaneous change is one in there is:

An increase in Internal energy
Increase in free energy
A lowering of entropy
A lowering of free energy

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Chemistry
Water can be separated from alcohol water mixture by

Decantation
Evaporation
Distillation
Sublimation

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Chemistry
Which of the following is colourless ?

Chlorine
Phosphorus
Oxygen
Sulphur

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Chemistry
Acid rain is caused by the pollution of environment by

Carbon monoxide and Carbon dioxide
Nitrous oxide and Sulphur dioxide
Carbon dioxide and Nitrogen
Ozone and Carbon dioxide

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Chemistry
Stainless steel is usually made by alloying the steel with

Copper and chromium
Chromium and nickel
Manganese and copper
Copper and nickel

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MORE MCQ ON Chemistry

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