Question

17. When Mg is burnt in the atmosphere of an element X white powder is obtained. When
dissolved in water it gives a gas Y with pungent smell. What are X and Y ?
(1) C, CH4
(2) N2. NH3
(3) P, H3PO4
(4) S, H2S​

Answer 1

Answer:

x is magnesium oxide mgo and y is hydrogen