Question

when blue Litmus Paper is dipped in a solution of n a o h it​

Answer 1

Answer:

so here is your Ans..

Blue litmus paper is dipped in a solution. ... Acidic solutions change blue litmus red, hence it is not acidic. Bases change red litmus to blue hence there is no change in colour of blue litmus paper. Neutral solutions have no effect on litmus paper.

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Answer 2

Answer:

A 'drop of sodium hydroxide' is added to blue litmus paper remains change.

Explanation:

Litmus paper is used as an acid base indicator. If an acid contact with blue litmus paper than it changes to red colour.