EasyChemistryHigh School (9–10)GeneralAcids, Bases and Salts › Salts and Their UsesConceptualBoard Exam

How is bleaching powder made? Write the equation, and give three uses of it.

Try it on paper first. A hint, the key idea and the worked solution are here when you need them.

Need a reminder? The key ideaShow

A salt has the positive ion of a base and the negative ion of an acid. Strong acid + strong base gives a neutral salt; strong acid + weak base, an acidic one; weak acid + strong base, a basic one. Electrolysis of brine gives NaOH, $\text{Cl}_2$ and $\text{H}_2$ .

The worked solution

Have you tried it?

Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.

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