11th Class Chemistry Organic Chemistry: Some Basic Principles & Techniques Question Bank 11th CBSE Chemistry Organic Chemistry: Some Basic Principles & Techniques

  • question_answer ) (a) Write down resonating structure and tautomer of     (b)\[C{{H}_{2}}=\overset{\Theta }{\mathop{C}}\,H\] is more basic than \[HC\equiv {{C}^{-}}\]. Explain why.

    Answer:

                    (a)                              (b)\[C{{H}_{2}}=\overset{s{{p}^{2}}}{\mathop{C{{H}^{-}}}}\,\]   \[HC\equiv \overset{sp}{\mathop{{{C}^{-}}}}\,\] Since, \[sp\]-carbon is more electronegative than \[s{{p}^{2}}\]-carbon, therefore, \[CH\equiv {{C}^{-}}\] is less willing to donate a pair of electrons than \[{{H}_{2}}C=C{{H}^{-}}\]. In other words, \[{{H}_{2}}C=C{{H}^{-}}\] is more basic than \[HC\equiv {{C}^{-}}\].


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