Question

Suresh is a colourblind student. Which indicator he can use to identify acid and base?​

Answer 1

It's hard to be visually disabled , it's harder to be a visible disabled chemist .After all most reactions in physical chemistry depend on the colour of a substance . It it not easy for a person with perfect eyesight to perform titration . Just imagine how hard it would be for a visually challenged person to perform titration .

Fear not, chemists around the world always have an answer to any question you can throw at them .

In order to help visually disabled people chemists have developed an olfactory indicator which indicated the end point of an acid base titration .
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Answer 2

hey friend,

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INDICATORS : Indicators are those substances which help us to indicate whether a substance is acidic or basic.

Some common indiactors are...

Litmus paper

China rose solution

or

methyl orange

magnesium chromated