In which of the following substances, the melting point increases with the increase in pressure.

Ice

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Wax

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Lead

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Polythene

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Solution

The correct options are
B
Wax

C
Lead

The melting point of the substances which contract on melting (like ice and polythene) decreases by the increase in pressure.
On the other hand, the melting point of the substances (such as wax, lead) which expand on melting, increases by the increase in pressure.

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Similar questions

In which of the following substances, the melting point increases with the increase in pressure.

Q. The melting point of most of the solid substances increases with an increase in pressure. However ice melts at a temperature lower than its usual melting points when pressure is increased. This is because:

Q. The melting points of most of the solid substances increase with an increase of pressure acting on them. However, ice melts at a temperature lower than its usual melting point, when the pressure increases. This is because :

Chose the correct statement.
(A) The melting point of all substances decreases with an increase in pressure.
(B) The boiling point of water increases with the addition of impurities.

Q. S : The melting point of ice is lowered on increasing the pressure, whereas melting point of solid other than ice is raised upon increasing pressure,
E : Ice shows H-bonding and leads to the three dimensional solid of more volume.

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