Hydrogen Test -...

The volume of perhydrol which on decomposition gives 1.5 lit of $$O_{2}$$ gas at STP is:

The volume strength of $$15\%$$ (w/v) solution of $$H_{2}O_{2}$$ is :

The volume of $$20\:V-H_{2}O_{2}$$ solution, required to prepare $$5$$ litres of oxygen at STP is:

The volume (in ml) of oxygen liberated at STP when $$100$$ ml of $$15\:V$$ $$H_{2}O_{2}$$ decomposes is:

The volume strength of $$3N\:H_{2}O_{2}$$ solution is:

The $$\%$$ by weight of hydrogen in $$H_{2}O_{2}$$ is :

$$H_{2}O_{2}$$ turns blackened lead paintings to white colour. In this reaction it oxidizes $$PbS$$ to $$PbSO_{4}$$. The number of moles of $$H_{2}O_{2}$$ needed to oxidize $$0.1$$ moles of $$PbS$$ is:

The co-ordination number of $$Na$$ in solid $$NaH$$ is:

The reaction between $$H_2O_2$$ and $$KMnO_4$$ is $$2KMnO_4+3H_2SO_4+5H_2O_2 \rightarrow K_2SO_4+2MnSO_4+8H_2O+5O_2$$.