Question

Q16
Which of the following has oxygen atom
in zero oxidation number?
Hydrogen peroxide
Ozone
Water
Oxygen difluoridewhich of the following has oxygen atom in zero oxidation number hydrogen peroxide Ozone water oxygen difluoride ​

Answer 1

The oxygen atom  is in zero oxidation number state in:

(B) OZONE

- The oxidation no of oxygen in hydrogen peroxide (H2O2) is -1.

+1 × 2 + x × 2 = 0

⇒x = -2/2 = -1

- The oxidation no of oxygen in ozone (O3) is ZERO.

- The actual oxidation no of the three atoms in ozone is +1, -1 and 0.

- So, the average oxidation no = {+1 + (-1) + 0}/3 = 0

- The oxidation no of oxygen in water (H2O) is -2.

+1 × 2 + x = 0

⇒ x = -2

- The oxidation no of oxygen in oxygen difluoride (OF2) is +2.

x + 2 × (-1)  = 0

⇒x = +2