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Question

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



Your Answer
A

Ice

Correct Answer
B

Wax

Correct Answer
C

Lead

Your Answer
D

Polythene


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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