JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Le-Chatelier principle and it's application

  • question_answer
    Which of the following reactions proceed at low pressure [MP PET 1985; CPMT 1984; MP PMT 1995; RPMT 1997]

    A)                 \[{{N}_{2}}+3{{H}_{2}}\] ⇌ \[2N{{H}_{3}}\]         

    B)                 \[{{H}_{2}}+{{I}_{2}}\] ⇌ \[2HI\]

    C)                 \[PC{{l}_{5}}\] ⇌ \[PC{{l}_{3}}+C{{l}_{2}}\]

    D)                 \[{{N}_{2}}+{{O}_{2}}\] ⇌ \[2NO\]

    Correct Answer: C

    Solution :

              At low pressure, reaction proceeds where volume is increasing. This is the favourable condition for the reaction. \[PC{{l}_{5}}\]⇌\[PC{{l}_{3}}+C{{l}_{2}}\].


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