Question

Oxidation numbers of $A,B$ and $C$ are $+2,+5$ and $– 2$ respectively possible formula of compound is:

• A. $A_2(BC2)_2$
• B. $A_3(BC_4)_2$
• C. $A_2(BC_3)_2$
• D. $A_3(B_2C)_2$

Answer 1

Answer: (B)

$A_3(BC_4)_2$

Answer 2

Given the oxidation states:

• A has an oxidation state of +2.
• B has an oxidation state of +5.
• C has an oxidation state of -2.

To create a compound with a neutral charge, you must balance the charges. In this case, you need three +2 charges from A to balance the three -2 charges from C and two +5 charges from B. The possible formula of the compound is $A_3(BC_4)_2$

So, the Correct option is (B): $A_3(BC_4)_2$