You are given three solutions A, B and C with pH values 2, 10 and 13 r

1.	You are given three solutions A, B and C with pH values 2, 10 and 13 respectively. Write which solution has more hydrogen ions concentration among the three and state the nature ‘acidic or basic’ of each solution.
Answer» According to the theory on a pH scale, a more acidic substance is assigned a lower value. Normally substances with pH less than 7 are considered as acidic and those with pH greater than 7 are considered as basic with acidic strength increasing as we move towards 1 from 7 and the basic strength increases as we move toward 14 from 7. The more the acidic a substance is the more the hydrogen ions concentration will be. Hence, in the given solutions, solution A has more hydrogen ions concentration as it is having the least pH value out of the three. The nature of each solution is: - Solution A – acidic Solution B – basic Solution C – basic

You are given three solutions A, B and C with pH values 2, 10 and 13 respectively. Write which solution has more hydrogen ions concentration among the three and state the nature ‘acidic or basic’ of each solution.

Answer»

According to the theory on a pH scale, a more acidic substance is assigned a lower value. Normally substances with pH less than 7 are considered as acidic and those with pH greater than 7 are considered as basic with acidic strength increasing as we move towards 1 from 7 and the basic strength increases as we move toward 14 from 7. The more the acidic a substance is the more the hydrogen ions concentration will be.

Hence, in the given solutions, solution A has more hydrogen ions concentration as it is having the least pH value out of the three.

The nature of each solution is: -

Solution A – acidic

Solution B – basic

Solution C – basic

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