A) When a little NaOH is added, it will form a buffer solution
B) It is a weak acid
C) Its sodium salt will be acidic
D) Its sodium salt will be basic
Correct Answer: C
Solution :
[c] Concentration of monobasic acid=0.01 M \[pH=4\] If the acid is completely ionized, the pH of the acid would be \[pH=-\log 0.01=-\log {{10}^{-2}}=2\] So it is a weak acid. When the sodium salt of a weak acid is dissolved, the anions will be hydrolysed giving rise to \[O{{H}^{-}}\]ion concentration . The solution will be basic, So statement (3) is incorrect.
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