Question

An indicator which is green in colour in basic medium

Answer 1

Explanation:

A solution of china rose turns green in a basic solution, and bright pink or magenta in an acidic solution. China rose is another indicator extracted from China rose petals. In an acidic medium, it exhibits dark pink (magenta), while in a basic medium, it exhibits green colour.

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Answer 2

Answer:

The colours from yellow to red indicate an acidic solution, colours blue to violet indicate alkali and green colour indicates that a solution is neutral.

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Universal indicator.

pH range Description Colour

< 3 Strong acid Red

3–6 Weak acid Orange or yellow

7 Neutral Green

8–11 Weak alkali Blue