Which of the following are correct regarding LPG It consists of volatile and flammable hydrocarbons ...........

General Science (Easy) Chemistry

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Which of the following are correct regarding LPG?

It consists of volatile and flammable hydrocarbons such as ethane, propane, butane and pentane
It is obtained by fractional distillation.
It is colourless and odorless.
They are in gaseous form are converted into liquefied form in cylinders by super cooling

1 & 2 only

1, 2 & 3 only

1, 2, 3 & 4

1 & 4 only

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Explanation:

The main composition of LPG are propane (C3H8) and butane (C4H10). Small concentrations of other hydrocarbons may also be present.

It is a colourless and odourless gas to which foul-smelling mercaptan is added so that leak can be easily detected.

LPG is a gas at atmospheric pressure and normal ambient temperatures, but it can be liquefied when moderate pressure is applied or when the temperature is sufficiently reduced. Normally, the gas is stored in liquid form under pressure in a steel container, cylinder or tank. The pressure inside the container will depend on the type of LPG (commercial butane or commercial propane) and the outside temperature.