Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Which salts undergo hydrolysis? (1)\[NaCl\] (2)\[C{{H}_{3}}COONa\] (3) \[KN{{O}_{3}}\] (4)\[N{{H}_{4}}Cl\]A) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: C
Solution :
\[NaCl\]and\[KN{{O}_{3}}\]salts do not undergo hydrolysis because they are salts of strong base and strong acid. While\[C{{H}_{3}}COONa\]and \[N{{H}_{4}}Cl\]undergo hydrolysis. \[C{{H}_{3}}COONa+{{H}_{2}}\text{O}\xrightarrow{{}}C{{H}_{3}}COOH+NaOH\] \[N{{H}_{4}}Cl+{{H}_{2}}\text{O}\xrightarrow[{}]{{}}N{{H}_{4}}OH+HCl\]
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