question_answer

In the compound \[HC=C-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,=C{{H}_{2}}\]the hybridisation of C-2 and C-3 carbons are respectively

A)  \[s{{p}^{3}}\] and\[s{{p}^{3}}\]               

B)  \[s{{p}^{2}}\]and \[s{{p}^{3}}\]

C)  \[s{{p}^{2}}\]and \[~sp\]            

D)  \[s{{p}^{3}}\]and sp

Correct Answer: C

Solution :

                  \[{{C}_{2}}=3\sigma \]bonds \[\Rightarrow \,s{{p}^{2}}\]hybridization \[{{C}_{3}}=2\sigma \]bonds \[\Rightarrow sp\]hybridization