Question

When red litmus paper is added to limewater, then what will
be the change in litmus paper? Give reason. Write the chemical
formula of limewater also.

Answer 1

Red Litmus paper turns blue

Answer:

$Ca(OH) _2$

Explanation:

In lime water $\red{\bold {RED}}$ litmus paper turns $\blue {\bold {BLUE}}$ because lime water is alkaline.

$formula \: for \: lime \: water : Ca(OH) _2$