Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Classification of Elements and Periodicity in Properties
Which one is strongest acidic oxide-
1
N2O5
2
P2O5
3
As2O5
4
More than one of the above
5
None of the above