Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Chemistry Classification of Elements and Periodicity in Properties Periodic Table
According to Modern Periodic Table, an Element A is present in Group 1, Period 3 and Element B is present in Group 17, Period 3. A reacts with B to form compound C. The chemical formula of compound C is
1
A2 B
2
A B
3
A2 B3
4
More than one of the above
5
None of the above