Solveeit Logo

Question

Chemistry Question on Methods of Preparation of Haloalkanes

Ethyl bromide is industrially prepared from

A

ethyl alcohol +HBr+ HBr

B

ethanol +Br2+ Br_2

C

alcohol +HBr+ HBr

D

none of these

Answer

ethyl alcohol +HBr+ HBr

Explanation

Solution

Industrial preparation o f ethyl bromide - By refluxing the alcohol with constant boiling HBr (48%)(48 \%) in presence o f little concentrated sulphuric acid C2H5OH+HBrC_{2}H_{5}OH+HBr >[H2SO4(conc.)][reflux]C2H5Br+H2O { ->[{H_{2}SO_{4} {\text(conc.)}}][{\text{reflux}}] } C_{2}H_{5}Br+H_{2}O