An inorganic salt comprises of atoms of elements A , B and C . If the oxidation numbers of A, B and C are +3,+6 and - 2 respectively, what is the possible formula of the compound?

Step-by-step solution

Let the formula of the compound be A _x( B _y C _z)_w . The sum of oxidation states in a neutral compound must be zero. Given oxidation numbers: A = +3 , B = +6 , C = -2 . Consider the option A ₂( BC ₄)₃ . The total charge is calculated as: 2 (+3) + 3 [1 (+6) + 4 (-2)] . = 6 + 3 [6 - 8] = 6 + 3 (-2) = 6 - 6 = 0 . Since the sum of oxidation states is zero, the formula A ₂( BC ₄)₃ is electrically neutral and represents a possible inorganic salt. Answer: A ₂ ( BC ₄ )₃