Question

a, b, c are three elements forming a compound in oxidation states of +2,+5 and -2 respectively. what is the compound. please answer fast.
a. a2(bc)2
b. a2(bc4)3
c. a3(bc4)2
d. abc

Answer 1

Given:

The oxidation state of a = +2

The oxidation state of b = +5

The oxidation state of c = -2

To Find:

The compound formed by a, b and c.

Calculation:

- For a2(bc)2, oxidation state = 2 × 2 + (5-2) × 2 = 10

- For a2(bc4)3, oxidation state = 2 × 2 + (5-2×4) × 3 = -5

- For a3(bc4)2, oxidation state = 2 × 3 + (5-2×4) × 2 = 0

- For abc, oxidation state = 2 + 5 - 2 = +5

- For a neutral compound, oxidation state = 0

- Hence, the compound formed by a, b and c is a3(bc4)2.

- So, the correct answer is option (c) a3(bc4)2