Oxidation numbers of A, B and C are +2, +5 and -2 respectively. What could be the possible formula?
a) A_2(BC_2)_2
b) A_3(BC_4)_2
c) A_2(BC_3)_2
d) A_3(B_2C)_2
a)
b)
c)
d)
1 Answer
This is a good question....
We propose to make a neutral salt.....and thus the ionic charges MUST sum to neutrality, to ZERO....
Explanation:
And so we gots
And we must go thru the formulae sequentially....
Remember, all I am doing is assessing positive versus negative charge...this is an exercise in arithmetic and book-keeping not chemistry.....AND don't trust my arithmetic. Satisfy yourself that what I have written is kosher.