2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-45

  • question_answer
    \[M{{g}_{2}}{{C}_{3}}\] reacts with water forming propyne, \[{{C}^{4-}}_{3}\] has-

    A) Two sigma and two pi bonds

    B) Three sigma and one pi bonds

    C) Two sigma and one pi bonds

    D) Two sigma and three pi bonds

    Correct Answer: A

    Solution :

    \[{{C}^{\text{-4}}}_{3}\Rightarrow \,\,\overset{-3}{\mathop{C}}\,\,-\,\,C\equiv \overline{C}\,\,\,\,\,\sigma \Rightarrow 2\] \[\pi \,\,\Rightarrow \,\,2\]


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