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Assertion : The crystalline solids have ...

Assertion : The crystalline solids have a sharp melting point.
Reason: All the bonds between the atoms or molecules fo a crystalline solids are equally strong, that they get broken at the same temperature.

A

If both the assertion and reason are true and reason is a true explantion of the assertion.

B

If both the assertion and reason are true but the reason is not true the correct explantion of the assertion.

C

If the assertion is true but reason false

D

If both the assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
At a particular temperature all the bonds of crystalline solids breaks and show sharp melting point.
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Which property makes the crystalline solids to have sharp melting point ?

In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c ) If assertion is true but reason is false. (d) If assertion and reason are false. Q. Glassy solids have sharp meting point. Reason: The bonds between the stoms of glassy solids get broken at the same temperature.

Assertion (A) : Covalent crystals have higher melting point. Reason (R ) : Covalent bonds are stronger than ionic bonds.

Assertion (A): Most of the solids possess high melting point. Reason (R): They have strong intermolecular forces of attraction.

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