Question

In the hydrogenation reaction given below, the hybrid state of the carbon atom changes from: $ {{C}_{2}}{{H}_{2}}\xrightarrow{{{H}_{2}}/Ni}{{C}_{2}}{{H}_{4}}\xrightarrow{{{H}_{2}}/Ni}{{C}_{2}}{{H}_{6}} $

• A. $ sp-s{{p}^{2}}-s{{p}^{3}} $
• B. $ s{{p}^{3}}-s{{p}^{2}}-sp $
• C. $ s{{p}^{2}}-sp-s{{p}^{3}} $
• D. $ s{{p}^{3}}-sp-s{{p}^{2}} $

Answer 1

Answer: (A)

Carbon atom undergoes $ sp,\,s{{p}^{2}} $ and $ s{{p}^{3}}\text{-} $ hybridisation in $ {{C}_{2}}{{H}_{2}}, $ $ {{C}_{2}}{{H}_{4}} $ and $ {{C}_{2}}{{H}_{6}} $ respectively.