Which among the following reactions will not give alkyne? 

• A

  ${\text{2C + H}}_{\text{2}}\underset{{\text{1200 }}^{\text{o}}\text{C}}{\overset{\text{Electric arc}}{\to }}$

• B

  ${\text{6CH}}_{\text{4}}{\text{ + O}}_{\text{2}}\underset{ }{\overset{\text{Controled Oxidation}}{\to }}$

• C

  ${\text{Mg}}_{\text{2}}{\text{C}}_{\text{3}}{\text{ + H}}_{\text{2}}\text{O}\underset{ }{\overset{ }{\to }}$

• D

  ${\text{BrCH}}_{\text{2}}{\text{CH}}_{\text{2}}\text{Br + Zn}\underset{\Delta }{\overset{Alcohol}{\to }}$