$10 \,mL$ of a solution of $NaOH$ is found to be completely neutralised by $8 \,mL$ of a given solution of $HCl$. If we take $20 \,mL$ of the same solution of $NaOH$, the amount of $HCl$ solution (the same solution as before) required to neutralise it will be ...... $mL$
Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas ?
A solution reacts with crushed egg-shells to give a gas that turns lime water milky. The solution contains
What is a neutralisation reaction? Give two examples.
Plaster of Paris should be stored in a moisture-proof container. Explain why ?