A buffer solution contains a weak acid HA and A- . When small quantity of NaOH is added to keep pH as constant, which of the following reaction takes place?
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a
b
c
d
answer is C.
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Detailed Solution
When NaOH is added, [OH¯] increasesThe incoming OH- will be neutralised by the H+ furnished from the above equilibrium.
A buffer solution contains a weak acid HA and A- . When small quantity of NaOH is added to keep pH as constant, which of the following reaction takes place?