• # question_answer There is a sample of 10 volume of hydrogen peroxide solution. Calculate its strength [UPSEAT 2001] A) 3.00% B) 4.045% C) 2.509% D) 3.035%

$[{{H}_{2}}{{O}_{2}}\to {{H}_{2}}O+\frac{1}{2}{{O}_{2}}]\times 2$ $\underset{68\,g}{\mathop{2{{H}_{2}}{{O}_{2}}}}\,\to 2{{H}_{2}}O+{{O}_{2}}$ 22.4 litre at N.T.P. $\because$ 22.4 litre ${{O}_{2}}$ at N.T.P. obtained by 68 gm of ${{H}_{2}}{{O}_{2}}$ \ 10 litre ${{O}_{2}}$ at N.T.P. obtained by $\frac{68}{22.4}\times 10=30.35\,gm/litre$ \ 1000 ml ${{O}_{2}}$ at N.T.P. obtained by = 30.35 gm \ 100 ml ${{O}_{2}}$ at N.T.P. obtained by $=\frac{30.35}{1000}\times 100=3.035%$