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Question
Assertion :The [H+] in 10−8N HCl is 1.05×10−7M Reason: The H+ is obtained from HCl and H2O; the later furnishes less H+ than 10−7 diue to common ion effect.
Assertion :The [H+] in 10−8N HCl is 1.05×10−7M Reason: The H+ is obtained from HCl and H2O; the later furnishes less H+ than 10−7 diue to common ion effect.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Total no of ions in 10−8MHCl=10−8+10−7=1.05×10−7M from acid + from water
Adding a common ion prevents the weak acid or weak base from ionizing as much as it would without the added common ion. The common ion effect suppresses the ionization of a weak acid by adding more of an ion that is a product of this equilibrium.
Total no of ions in 10−8MHCl=10−8+10−7=1.05×10−7M
from acid + from water
Adding a common ion prevents the weak acid or weak base from ionizing as much as it would without the added common ion. The common ion effect suppresses the ionization of a weak acid by adding more of an ion that is a product of this equilibrium.
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