Answer:
We will put a drop each of hydrochloric acid,
sodium hydroxide and sugar solution on the turmeric indicator. The liquid which
changes this colour of turmeric indicator to red is basic in nature that is sodium
hydroxide. Now, we will put a drop of sodium hydroxide on a drop of each of the
other two liquids separately. After that we will put the drops of their
mixtures on turmeric indicator. The drop which will change the colour of the
turmeric indicator to red contains sugar solution.
This is because the mixture of base and neutral
solution is basic in nature. On the other hand, the drop which will not change
the colour of turmeric indicator contains hydrochloric acid because
hydrochloric acid reacts with sodium hydroxide forms a neutral solution.
Sodium hydroxide + Hydrochlorice acid/sugar
solution \[\xrightarrow[{}]{{}}\] Mixture \[\xrightarrow[{}]{{}}\] Hydrochloric
acid \[\xleftarrow[\text{in colour}]{\text{No change}}\] Drop on turmeric
solution \[\xrightarrow[{}]{{}}\] Colour changes to red \[\xrightarrow[{}]{{}}\]
Sugar solution
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