Question

12.Ramisconductinganexperimentinthelaboratoryofhisschool.Hetookhydrochloric

acidinatesttubeandputadropofphenolphthaleinindicatorinitbutnosignificant

changeisobserved.Hethenaddedsodiumhydroxidetoitandthesolutionturnedpink.

Hewonderedwhyitisso.Heagainaddedalittlemorehydrochloricacidtothesolution

andthepinkcolourofthesolutionbecamelight.Afteraddingabitmoreofhydrochloric

acidpinkcolourdisappearedandthesolutionagainbecamecolourless.

[U](i)Canyouidentifythechemicalreaction?

[Ap](ii)Writethenameofproductsobtainedintheabovementionedreaction.Givethe

wordequationofthereaction.

[Cr](iii)Givethenameofanaturalindicatorandwritehowitreactswithacidsand​

Answer 1

Answer:

Explanation:

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