JCECE Engineering JCECE Engineering Solved Paper-2011

  • question_answer
    Which of the following salt when dissolved in water gets hydrolysed?

    A) \[NaCl\]                              

    B) \[N{{H}_{4}}Cl\]

    C) \[KCl\]                                 

    D) \[N{{a}_{2}}S{{O}_{4}}\]

    Correct Answer: B

    Solution :

    Only salts of strong acid and strong base are not hydrolysed. All other salts can generally hydrolysed. \[N{{H}_{4}}Cl\] is a salt of weak base and strong acid, so it will hydrolyse in water. \[N{{H}_{4}}Cl\xrightarrow{{{H}_{2}}O}\underset{weak\,\,base}{\mathop{N{{H}_{4}}OH}}\,+\underset{strong\,\,acid}{\mathop{HCl}}\,\]


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