In between the metals A and B both form oxide but B also forms nitride, when both burn in air so A and B are

In between the metals A and B, both form oxide but B also form nitride, when both burns in the air. So A and B are:

In between the metals A and B, both form oxide but B also forms nitride, when both are heated in air. A and B are respectively

The metals X and Y that form oxide and nitride , when burnt in air are

When metals A and B are heated in air, A only forms oxide but B forms both oxide and nitride. A and B are

When boron burns in air it forms:

Two metals (A) and (B) belong to the same group of the periodic table. Metal (A) forms and insoluble oxide but a soluble sulphate, metal (B) forms a soluble oxide but an insoluble oxide but an insoluble sulphate. Both metals (A) and (B) form hydroxides which are soluble in alkalis. (A) and (B) are

Two metals (A) and (B) belong to the same group of the periodic table. Metal (A) forms and insoluble oxide but a soluble sulphate, metal (B) forms a soluble oxide but an insoluble oxide but an insoluble sulphate. Both metals (A) and (B) form hydroxides which are soluble in alkalis. (A) and (B) are