Chemistry, asked by Niharika020312, 10 months ago

Why is it necessary to wet the litmus paper to test the presence of evolving SO3
gas in decomposition of vitriol salts?
please answer fast
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Answers

Answered by shwetashukla794
2

Explanation:

because in presence of water only it gives out oH- or h+ ion

if water is not present it will not give out oh- or h + ion, so the color of litmus paper will not be changed

Answered by karmadomakarmadoma26
1

Answer:

Because the presence of carbolic acid can change the appearance of it.

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