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Preparation of Benzene and Homologues

C2H2→ Trans...

Question

$C_{2} H_{2} \to$ $T r a n s - 2 - p e n t e n e$

The reagents mentioned below are required to undertake the given reaction.
$R e a g e n t s$ : 1. excess $N a N H_{2}$ 2. excess MeBr 3. $N a N H_{2}$ 4. EtBr 5. $H_{2} / L i n d l a r^{'} s c a t a l y s t$

If the statement is true enter 1, else enter 0.

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Solution

Acetylene reacts with soda amide followed by methyl bromide to form prop-1-yne.
This is followed by the action of soda amide and ethyl bromide to form pent-2-yne.
Reduction with sodium in liquid ammonia gives trans-2-pentene.
Hence, the given statement is $t r u e$ .

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