A) Strong acid and weak base
B) Strong base and weak acid
C) Strong acid and strong base
D) Weak acid and weak base
Correct Answer: A
Solution :
\[\begin{matrix} N{{H}_{4}}Cl & & N{{H}_{4}}^{+} & + & C{{l}^{-}} \\ {{H}_{2}}O & & O{{H}^{-}} & + & {{H}^{+}} \\ {} & {} & \underset{weak\,base}{\mathop{N{{H}_{4}}OH}}\, & {} & \underset{strong\,acid}{\mathop{HCl}}\, \\ \end{matrix}\] So that in hydrolysis of \[N{{H}_{4}}Cl\]solution pH is smaller than 7. So that solution will be acidic.
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