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79. Which one is the correct order of acidity(1) \( CH \equiv CH > CH _{3}- C \equiv CH > CH _{2}= CH _{2}> CH _{3}- CH _{3} \)(2) \( CH \equiv CH > CH _{2}= CH _{2}> CH _{3}- C \equiv CH > CH 3- CH \)(3) \( CH _{3}- CH _{3}> CH _{2}= CH _{2}> CH _{3}- C \equiv CH > CH \equiv CH \)(4) \( CH _{2}= CH _{2}> CH _{3}- CH = CH _{2}> CH _{3}- C \equiv CH > CH \equiv CH \) |
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Answer» correct answer is 1: Since terminal carbon of alkyne group is acidic because is has higher electronegativity then other and in CH3–C=_CH CH3 is showing +I effect which will un stabilise the - charge on C which will come after H is gone Order of Electronegativity:- alkyne > alkene > alkane |
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