Question

give answer of this picture

Answer 1

The PH of dilute hydrochloric acid is 0. It gives a red colour on blue litmus paper or would turn litmus solution red. The PH of ethanoic acid is 3. It would turn Universal Indicator solution yellow orange. The PH of water os 7 and it would turn universal indicator solution green. The PH of sodium hydroxide is 14 and it would turn universal indicator solution violet amd would also turn litmus paper blue. The PH of lemon juice is 3.5. It contains a weak acid which is called citric acid and would turn universal indicator solution yellow orange. The PH of sodium hydrogencarbonate is 10 and would turn litmus paper blue.