Question

a student prepared solution of an acid and a base in two separate beakers . she forgets to label the solution and litmus paper is not available in laboratory .since both the solution are colourless , how will she distinguish between two​

Answer 1

By using phenolphthalein and methyl orange

phenolphthalein gives pink colour in basic solution and colourless in acidic solution

methyl orange gives red colour in acidic solution and yellow colour in basic solution

Answer 2

Explanation:

acid is in first column and base in second column