When 2-butyne is treated with H2/ Lindlar's catalyst, compound X is produced as the major product and when treated with Na/ liq. NH3 it produces Y as the major product. Which of the following statements is correct ?

Engineering

Chemistry

Acidic and Basic Strength

Question

When 2-butyne is treated with H₂/ Lindlar's catalyst, compound X is produced as the major product and when treated with Na/ liq. NH₃ it produces Y as the major product. Which of the following statements is correct ?

X will have higher dipole moment and higher boiling point than Y

Y will have higher dipole moment and higher boiling point than X

X will have lower dipole moment and lower boiling point than Y

Y will have lower dipole moment and lower boiling point than X

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As we learnt,

Birch Reduction :

Alkynes on reduction with sodium in liquid NH₃ form trans alkene where in

Reduction of alkynes.

Proceeds via two single electron transfer from Na to alkyne each followed by protonation with NH₃.

Cis have higher dipole moment than trans option 1 is correct. i.e,

X will have higher dipole moment and higher boiling point than Y.

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