$H - C\, \equiv CH\,\xrightarrow[{(ii)\,C{H_3}C{H_2}Br}]{{(i)\,NaN{H_2}\,/\,liq.\,N{H_3}}}\,X$

$\xrightarrow[{(ii)\,C{H_3}C{H_2}Br}]{{(i)\,NaN{H_2}\,/\,liq.\,N{H_3}}}\,Y$

પ્રક્રિયામાં $X$ અને $Y$ ....... છે.

Question

$H - C\, \equiv CH\,\xrightarrow[{(ii)\,C{H_3}C{H_2}Br}]{{(i)\,NaN{H_2}\,/\,liq.\,N{H_3}}}\,X$

$\xrightarrow[{(ii)\,C{H_3}C{H_2}Br}]{{(i)\,NaN{H_2}\,/\,liq.\,N{H_3}}}\,Y$

પ્રક્રિયામાં $X$ અને $Y$ ....... છે.

A$X= {2-}$ બ્યુટાઈન $,\, Y = {2-}$ હેકઝાઈન
B$X= 1-$ બ્યુટાઈન $,\, Y = {2-}$હેકઝાઈન
C$X= 1-$ બ્યુટાઈન $,\, Y = {3-}$હેકઝાઈન
D$X= {2-}$ બ્યુટાઈન $, \,Y = {3-}$હેકઝાઈન

NEET 2016, Advanced

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Solution

c
$H-C\equiv C-H\xrightarrow[liq.\,N{{H}_{3}}]{Na\,N{{H}_{2}}/}HC\equiv C\,Na$ $\xrightarrow[-NaBr]{C{{H}_{3}}C{{H}_{2}}-Br}CH\equiv C-C{{H}_{2}}-C{{H}_{3}}$

$C{{H}_{3}}-C{{H}_{2}}-C\equiv CH\xrightarrow[liq.\,N{{H}_{3}}]{Na\,N{{H}_{2}}/}$ $C{{H}_{3}}-C{{H}_{2}}-C\equiv C\,Na\xrightarrow[-NaBr]{C{{H}_{3}}C{{H}_{2}}-Br}$ $\underset{3-Hexyne}{\mathop{C{{H}_{3}}-C{{H}_{2}}-C\equiv C-C{{H}_{2}}-C{{H}_{3}}}}\,$

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