A solution turns red litmus blue, its $pH$ is likely to be
$1$
$4$
$10$
$5$
Write an equation to show the reaction between Plaster of Paris and water.
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.
$10 \,mL$ 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 ...... $mL$
Do basic solutions also have $H^+_{(aq)}$ ions ? If yes, then why are these basic ?