20 volumes H2O2 solution has a strength of about

Question

20 volumes H2O2 solution has a strength of about (A) 30 % (B) 6 % (C) 3 % (D) 10 %

Tardigrade Admin · Accepted Answer

∵ 22.4 litres O2 at N.T.P. obtained by 68 g of H2O2 ∴ 1 litre O2 at N.T.P. obtained by (68/22.4) g of H2O2 ∴ 20 litres O2 at N.T.P. obtained by (68/22.4) × 20 g of H2O2 = 60.71 g of H2O2 ∴ 1000 ml O2 at N.T.P. obtained by = 60.71 g of H2O2 ∴ 100 ml O2 at N.T.P. obtained by = (60.71/1000) × 100 = 6.71 %

Q. $20$ volumes $H_{2} O_{2}$ solution has a strength of about

$30%$

$6%$

$3%$

$10%$

Q. 20 volumes H2​O2​ solution has a strength of about

30%

6%

3%

10%

Q. $20$ volumes $H_{2} O_{2}$ solution has a strength of about

$30%$

$6%$

$3%$

$10%$