Assertion. In case of polyprotic acids, first ionization constant in lowest. Reason. The removal of first proton is mostdifficult. Further ionization becomes easier.

Assertion. In case of polyprotic acids, first ionization constant in l

1.	Assertion. In case of polyprotic acids, first ionization constant in lowest. Reason. The removal of first proton is mostdifficult. Further ionization becomes easier.
Answer» If both ASSERTION and reason are true, and reason is the true explanation of the assertion. If both assertion and reason are true, but reason is not the true explanation of the assertion. If aasertion is true, but reason is false. If both assertion and reason are false. Solution :Correct A. In CASE of polyprotic ACIDS, first ionization CONSTANT is highest. Correct R. First proton is lost easily. Further, loss of `H^(+)` ion becomes difficult because it remains attracted by the negative ion.