JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Self Evaluation Test - The p-Block Elements (Group 15, 16, 17 & 18)

  • question_answer
    \[BC{{l}_{3}}\] is a planar molecule whereas \[NC{{l}_{3}}\] is pyramidal because

    A) \[BC{{l}_{3}}\] has no lone pair of electrons but \[NC{{l}_{3}}\] has a lone pair of electrons.

    B) \[B-Cl\] bond is more polar than \[N-Cl\] bond.

    C) nitrogen atom is smaller than boron atom.

    D) \[N-Cl\] bond is more covalent than \[B-Cl\] bond.

    Correct Answer: A

    Solution :

    [a] In \[BC{{l}_{3}}\] there is \[s{{p}^{2}}\] hybridisation (planar) whereas in \[NC{{l}_{3}}\] hybridisation is \[s{{p}^{3}}\] hence shape is pyramidal


You need to login to perform this action.
You will be redirected in 3 sec spinner