A) \[CH\equiv CH\]
B) \[{{C}_{6}}{{H}_{6}}\]
C) \[{{C}_{2}}{{H}_{6}}\]
D) \[C{{H}_{3}}OH\]
Correct Answer: D
Solution :
sp-hybridised carbon is more electronegative than\[s{{p}^{2}}\]or\[s{{p}^{3}}\]hybridised carbon atom. Due to this greater electronegativity the electrons of \[CH\]bond are displaced more towards the carbon than towards the hydrogen atom. Hence, can be removed as a proton\[({{H}^{+}})\]by a strong base. In acetylene H-atom is attached with sp-hybridised carbon, while in benzene it is from\[s{{p}^{2}}\]hybridised carbon and in ethane it is from\[s{{p}^{3}}\]hybridised carbon. So, acetylene is more acidic than benzene and ethane, but it is less acidic than alcohols. So \[C{{H}_{3}}OH\]is strongest acid.
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