Question

What are indicator?Name any three indicators and state the colour change which take place in (I) acids (ii) bases 7 class ncert chapter 5

Answer 1

Answer:Indicator is a substance whish determines whether the given substance is acidic or basic.

1) Litmus :-

Litmus gives red colour in acidic and blue colour in basic solutions.

2) Turmeric:-

It gives yellow colour in acidic medium and brownish red colour in basic medium.

3) China Rose:-

It turns bright pink in acidic and green in basic solution.

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