. The substance that shows different colours in acidic and basic solutions is


(a)          indicators.

(b)          lacto metre

(c)           lux metre.

(d)          ammetre.

 

Best Answer

(a)

Explanation: Special types of substances are used to test whether a substance is acidic or basic. These substances are known as indicators. The indicators change their colour when added to a solution containing an acidic or a basic substance.

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