Question

2 capacitors r connected in series. the value of C1 is greater than C2. than voltage across which capacitor will be more

Answer 1

As the capacitors are connected in series, the current in both are the same.  The charge that builds across each capacitor is the same.

so  V1 = Q/C1       V2 = Q /C2

as C1 is more than C2,  V2 will be more than V1.

Answer 2

as the capacitors are connected in series,the current in both are the same. the change that builds across each capacitor is the same.
so,V1 = Q/C1 V2 = Q/C2

As C1 is more than C2 , V2 will be more than V1.