Question

The volume strength of 1MH₂O₂ is (Molar mass of H₂O₂ = 34 g mol^-1)
1. 16.8
2. 22.4
3. 11.35
4. 5.6

Answer 1

Correct Answer - Option 3 : 11.35

Concept:

Concentration of H₂O₂ is expressed in terms of volume strength, i.e. volume of O₂ liberated by H₂O₂ at NTP. Molarity is connected to volume strength as: 

Molarity (M) \(= \frac{x}{{11.2}}{\rm{\;or\;}}x = {\rm{\;Molarity\;}} \times 11.2\) 

where, x = volume strength

So, for 1MH₂O₂

X = 1 × 11.2 = 11.2

Among the given options, 11.35 is nearest to 11.2.