2-Hexyne gives trans-2-hexene on treatment with

Question

2-Hexyne gives trans-2-hexene on treatment with (A) Li/NH3 (B) Pd/BaSO4 (C) LiAlH4 (D) Pt/H2

Tardigrade Admin · Accepted Answer

Alkynes on treatment with alkali metals in liquid ammonia gives trans hydrogenation product: CH3 - C ≡ underset2- texthexyneC - CH2 -CH2 -CH3 xrightarrow Li/NH3

Q. $2$ -Hexyne gives trans- $2$ -hexene on treatment with

$L i / N H_{3}$

$P d / B a S O_{4}$

$L i A l H_{4}$

$Pt / H_{2}$

Alkynes on treatment with alkali metals in liquid ammonia gives trans hydrogenation product:
$C H_{3} - C \equiv 2 - hexyne C - C H_{2} - C H_{2} - C H_{3} L i / N H_{3}$

Q. 2-Hexyne gives trans-2-hexene on treatment with

Li/NH3​

Pd/BaSO4​

LiAlH4​

Pt/H2​