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Reason is not the correct explanation of
Assertion.
c) If Assertion is correct but Reason is incorrect.
d) If Assertion is incorrect but Reason is correct.
e) If Assertion & Reason both are incorrect.
Assertion (A.): All solids have definite crystalline structures.

Reason(R): Crystallisation gives pure substances.

4. a) Write differences between saturated and supersaturated U&R 2+1
solution.

b) Name two crystalline substances.

5. Sea water is exposed to sunlight to get salt from it. Hots 5

a) Name the method we apply to get crude salt from sea
water.
b) Write the chemical name and chemical formula of
common salt.
c) Is the above salt present in pure form? If not, how
does it can be purified?

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