Question

a student has four samples abcd containing dilute hcl aq kcl dilute naoh and distilled water which two examples would show equal value of ph

Answer 1

Equal value of pH will be given by - aq KCl and Distilled water.

• pH refers to measure of acidity or alkalinity of a solution.
• Dilute HCl is hydrochloric acid, which will show pH less than 7, due to presence of hydrogen ions.
• Dilute NaOH is a sodium hydroxide, which is base. The pH will be greater than 7.
• Distilled water has both hydrogen ions and hydroxyl ions, thus they both neutralise each other. pH will be 7.
• Same will be with aq KCl, which is derived from strong acid and strong base. The hydrogen ions and hydroxyl ions of acid and base neutralise each other, giving pH 7.

Answer 2

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