Question

Write down the changes that will take place upon adding Y to dilute HCl and to dilute NaOH.

Answer 1

When litmus paper is dipped into 2 mL of dilute HCI solution , then blue litmus paper is turned into red colour and there is no effect on red litmus paper. Again, if the same litmus paper is dipped into 2 mL of concentrated NaOH solution, then red litmus paper turns into blue colour but there is no effect on blue litmus paper.This is due to the respective properties of blue and red litmus paper with acid and base.

Answer 2

Explanation:

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