J & K CET Engineering J and K - CET Engineering Solved Paper-2006

  • question_answer
    Which of the following's a Lewis acid?

    A) \[AlC{{l}_{3}}\]

    B) \[C{{l}^{-}}\]

    C)  \[CO\]

    D) \[{{C}_{2}}{{H}_{2}}\]

    Correct Answer: A

    Solution :

     According to Lewis, acid is any sped (molecule, radical or ion) that can accept an electron pair to form a coordinate covalent bond. Thus acid is an electron deficient species, eg, \[B{{F}_{3}},AlC{{l}_{3}},SnC{{l}_{4}},S{{O}_{3}}\]and all cations etc. or \[AlCl_{4}^{-}\]


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