A compound contains three elements A, B and C

CHEMISTRY · Single correct · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

A compound contains three elements A, B and C, if the oxidation number of A = +2, B = +5 and C = -2, the possible formula of the compound is : (1)

A_3(B_4C)_2

(2)

A_3(BC_4)_2

(3)

A_2(BC_3)_2

(4)

ABC_2