These questions consist two statements each, printed as Assertion and reason, while answering these question you are required to choose any one of the following four responsis:
(a) If both the assertion and reason are true and reason is a true explanation of the assertion.
(b) If both the assertion and reason are true but the reason is not the correct explanation of assertion.
(c ) If the assertion is true but reason is false.
(d) If both the assertion and reason are false.
Q. Assertion: The melting point of ice decreases with increase of pressure.
Reson: ice contracts on melting.

Answer

B

Explanation

On increasing the pressure, melting point of ice decreases. Certain substances do not expand but contract when heated within a certain range of temperature. Water is one such example. If ice is taken at `0^@C` and start heating it, we find that in the temperature range `0^@C` to `4^@C` it contracts instead of expanding.