CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2008

  • question_answer
    Excess of \[PC{{l}_{5}}\] reacts with cone \[{{H}_{2}}S{{O}_{4}}\] giving

    A)                  chlorosulphonic acid

    B)  thionyl chloride

    C)  sulphuryl chloride

    D)  sulphurous acid

    Correct Answer: C

    Solution :

    \[PC{{l}_{5}}\] reacts with cone \[{{H}_{2}}S{{O}_{4}}\] to give sulphuryl chloride by replacing its hydroxyl groups with chlorine atoms. \[\underset{\begin{smallmatrix}  or \\  {{H}_{2}}S{{O}_{4}}  \\  Sulphuric\text{ }add \end{smallmatrix}}{\mathop{S{{O}_{2}}{{(OH)}_{2}}}}\,\,\,+2PC{{l}_{5}}\to \underset{\begin{smallmatrix}  Sulphuryl \\  chloride \end{smallmatrix}}{\mathop{S{{O}_{2}}C{{l}_{2}}}}\,+2POC{{l}_{3}}+2HCl\]


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