In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice.
Assertion: Simple distillation can help in separating a mixture of propan-1-ol (boiling point `97^(@)C`) and propanone (boiling point `56^(@)C`)
Reason: Liquids with a difference of more than `20^(@)C` in their boiling points can be separated by simple distillation.
A. both assertion and reason are true and reason is the correct explanationn of assertion
B. both assertionn and reason are true but reason is not the correct explanation of assertion
C. Assertionis true but reason is false.
D. both assertion and reason are false.

In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice.
Assertion : In any ionic solid [MX] with schottky defects, the number of positive and negative ions are same.
Reason : Equal number of cation and aniojn vacancies are present .
A. Both assertion and reason are true and reason is the correct explanation of assertion .
B. Both assertion and reason are true but reason.
C. Assertion is true but reason is false.
D. Both assertion and reason are false.