TBQ - Indicators and neutralisation reactions — task. Chemistry CBSE Live product, Class 7 (2026-27).

Pick the best answer for the following:

A solution containing an acid changes blue litmus paper to red. Which pair of substances can reverse this effect and restore the basic behaviour on litmus paper?

Baking soda solution and lime water
Vinegar and lemon juice
Orange juice and curd
Tamarind water and vinegar

Previous task

Exit to the topic

Next task

Send feedback

Did you find an error?

Send it to us!

3. TBQ - Indicators and neutralisation reactions

Question: