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Dipole Moment

Statement: Ac...

Question

$S t a t e m e n t$ : Action of $H_{2} / L i n d l a r^{'} s$ catalyst followed by $B r_{2} / C C l_{4}$ on 2-butyne produces a pair of diastereomers of 2,3-dibromobutane.
If the given statement is true the enter 1 if false enter 0.

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Solution

The hydrogenation of 2-butyne with lindlar's catalyst gives cis-2-butene. Addition of one molecule of bromine gives a racemic mixture of 2,3-dibromobutane.

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S t a t e m e n t

: Action of sodium in liquid

N H_{3}

B r_{2} / C C l_{4}

on 2-butyne produces meso-2,3-dibromobutane.
If the given statement is true then enter 1, if false enter 0.

S t a t e m e n t

: 2-butyne reaccts with one equivalent of

B r_{2}

C C l_{4}

to produce cis-2,3-dibromo-2-butene.
If true enter 1, if false enter 0.

S t a t e m e n t

: One mole of propyne reacts with Lindlar's catalyst to give propane.

If the given statement is true then enter 1, if false enter 0.

S t a t e m e n t

: When 2-butyne reacts with triethylamine followed by

B r_{2}

then meso-2,3-dibromobutane is produced.

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

S t a t e m e n t

: 1 mole of propyne reacts with 1 mole of

B r_{2}

C C l_{4}

to produce trans

C H_{3} C B r = C H B r

If the given statement is true then enter 1, if it is false enter 0.

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