Question

8. What will you observe when (Any three)

i. A drop of sodium hydroxide is added to blue litmus.

ii. A drop of hydrochloric acid is added to china rose indicator.

iii. A drop of dilute sulphuric acid is added to red cabbage juice.

iv A drop of vinegar is added to turmeric

v. Turmeric solution is added to detergent solution
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Answer 1

Answer:

A drop of sodium hydroxide' is added to blue litmus paper remains change. Litmus paper is used as an acid base indicator. ... If a base is contact with red litmus paper than it colour remains.

Soap contains sodium hydroxide which is a base and turmeric contains a mild acid so whenever soap solution is added to the turmeric paste it will give reddish brown colour .

when a drop of hydrochloric acid is added to China rose indicator it will change into dark pink or magenta colour which shows that the solution is acidic.

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