Home
Class 12
CHEMISTRY
Propyne reacts with HBr to form Z. The c...

Propyne reacts with HBr to form Z. The compound Z is

A

`CH_(2)(Br)CH_(2)CH_(2)Br`

B

`CH_(3)CH_(2)CHBr_(2)`

C

`CH_(3)CH(Br)CH_(2)Br`

D

`CH_(3)CBr_(2)CH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D

`underset("Propyne")(CH_(3)-CH-=C-H_(2))overset(H-Br)tounderset((Z))underset("2,2 dibromo propane")(CH_(3)-underset(Br)underset(|)overset(Br)overset(|)(C)-CH_(3))`
This is the electrophilic addition so the product will be 2, 2 - dibromo propane.
Promotional Banner

Similar Questions

Explore conceptually related problems

Which of the following does not react with xenon to form compounds

Methane of the polluted air reacts with ozone and forms the compounds.

Chloroethene reacts with Y to form NaCl and Z. One mole of Z reacts with two moles of HI to form water and iodo ethene. Which of the following is Y?

BF_(3) reacts with LiH and forms a compound A. The compound A reacts with water to give the compound B. A reacts with ammonia at 390 K and form C. Identify (A), (B) and (C).

Propene reacts with HBr to give isopropyl bromide but not n-propyl bromide. Why?

An aromatic compound 'X' on treatment with ammonium hydroxide and heating forms compound 'Y' which on heating with Br_(2) and KOH forms a compound 'Z' with molecular formula C_(6)H_(7)N . Write the structures of X, Y and Z.

A compound (X) C_(6)H_(12)O_(6) is oxidised by bromine water into monobasic acid and also reduces Tollens' reagent. It reacts with HCN to give a compound (Y) which on hydrolysis gives a compound (Z).On treating compound (Z) with HI in the presence of red phosphorus n-heptanoic acid is obtained. Compound (X) on treatment with excess phenylhydrazine gave D-glucosazone. The cyclic form of compound (X) is

A carbonyl compound reacts with HCN to form a cyanohydrin which on hydrolysis forms a racemic mixture of hydroxy acids. The compounds is

S_(N) 2 reaction involving inversion of configuration takes place with an optically active compound Z. The compound Z is