Q25 / 75 · JEE Main 2020 (03 Sep Shift 1) · Chemistry

The volume strength of $8.9 {MH}_{2} O_{2}$ solution calculated at $273 K$ and 1 atm is $........ (R = 0 .0821 L atm K^{- 1} {mol}^{- 1})$ (rounded off to the nearest integer)

Correct answer: 100

Solution

Molarity of $H_{2} O_{2}$ solution $= \{\frac{Volume strength}{11.2}\}$

Volume strength $= 8.9 \times 11.2$

$= 99.68 V$

Hence, the correct answer is 100.

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