Statement I : 0.1M NaCN + 0.05M HCl solution on mixing in equal volume forms a buffer solutionStatement II : The solution after mixing contains a weak acid and its conjugate base and thus acts as buffer
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a
Statement I and II are correct
b
Statement I is correct and Statement II is incorrect
c
Statement - I is incorrect and Statement II is correct
d
Both statement - I and statement - II are False
answer is A.
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Detailed Solution
On mixing the following reaction occurs. NaCN + HCl → HCN + NaClAfter reaction solution is mixture of weak acid and its salt with strong base, thus acts as buffer solution