Question

Suppose Y is a metal and has a valence 2. Which of the following compounds are possible?
(Note: Valency of given elements: 0= -2. Na = +1, Mg = +2)
(A YO
B)N 1
(CMgY
(D) Both A and
E) All of the above​

Answer 1

Answer:

(A) YO

Explanation:

The reason is that 'Y' element can be any alkaline earth metal which has two electrons in the outer most shell , so it will give its two electrons to the 'Oxygen' which needs two electrons to fullfill it's octet.