Question

Match the following in a way to have a neutralisation reaction.

• A. Lemon juice
• B. Milk of magnesia
• C. Calamine

Answer 1

Acid reflux is also known as acid indigestion. It is a condition in which the stomach acid $\left(\mathrm{HCl}\right)$ flows back into the food pipe. It can be neutralised by taking antacids like milk of magnesia
$\left(\mathrm{Mg}{\left(\mathrm{OH}\right)}_2\right)$, which forms magnesium chloride
${\left(\mathrm{MgCl}\right)}_2$ and water
$\left(H_{2}O\right)$.
A wasp sting is alkaline in nature as it injects a highly basic substance, i.e. Melittin which can be neutralised by using a weak acid such as vinegar or lemon juice.
A bee sting is acidic in nature as it injects formic acid, (or methanoic acid) which can be neutralised by applying calamine lotion or baking soda solution.