1.

(a) Account for the acidity of alkynes. (b) Explain the mechanism of sulphonation of benzene. ( c ) How will you convert the following : (i) Ethyne to but-2-yne(ii) Propeneto 2, 3-dimethylbutane(iii) Etheneto ethyne.

Answer» <html><body><p></p>Solution :( c ) (i)`underset("Ethyne")(HC-=CH)overset(2NaNH_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>))toNaC-=CNa overset(2CH_(3)Br)toCH_(3)underset("But-2-yne")(C-="CCH"(3))` <br/> (ii) `underset("Propene")(CH_(3)CH=)CH_(2)overset(HBr)toCH_(3)underset(Br)underset(|)(C)HCH_(3)overset("Na, <a href="https://interviewquestions.tuteehub.com/tag/ether-975855" style="font-weight:bold;" target="_blank" title="Click to know more about ETHER">ETHER</a>")underset("<a href="https://interviewquestions.tuteehub.com/tag/wurtz-3287156" style="font-weight:bold;" target="_blank" title="Click to know more about WURTZ">WURTZ</a> <a href="https://interviewquestions.tuteehub.com/tag/reaction-22747" style="font-weight:bold;" target="_blank" title="Click to know more about REACTION">REACTION</a>")to underset("2,3-Dimethyl butane")(CH_(3)underset(CH_(3))underset(|)(C)<a href="https://interviewquestions.tuteehub.com/tag/h-1014193" style="font-weight:bold;" target="_blank" title="Click to know more about H">H</a>-underset(CH_(3))underset(|)(C)H-CH_(3))` <br/> (iii) `underset("Ethene")(CH_(2)=CH_(2))overset(Br_(2),"CCl"_(4))tounderset(Br)underset(|)(C)H_(2)-underset(Br)underset(|)(C)H_(2)overset("2 alc. KOH")tounderset("Ethyne")(HC-=CH)`</body></html>


Discussion

No Comment Found

Related InterviewSolutions