Assertion (A): All alkalis are bases but all bases are not alkalis.
Reason (R): The bases which are insoluble in water are called alkalis.
1
Both (A) and (R) are true and (R) is the correct explanation of (A).
2
Both (A) and (R) are true but (R) is not the correct explanation of (A).
3
(A) is true but (R) is false.
4
Both (A) and (R) are false.