Conflict Serializability is Sufficient condition for serializability but not necessary.
Example
S1: w1(Y); w1(X); w2(Y); w2(X); w3(X); -- This is serial
S2: w1(Y); w2(Y); w2(X); w1(X); w3(X);
•S2 isn’t conflict serializable, but it is serializable. It has the same effect as S1.
–Intuitively, the values of X written by T1 and T2 have no effect, since T3 overwrites them.
Every conflict serializable transaction is view serializable but the converse is not true.
So i think both are false in this sense.