Question

which gas is produced in dehydrohalogenation of ethyl iodide​

Answer 1

Iodine is evolved in dehydrohalogination of ethyl iodide.

Answer 2

Answer: Hydrogen iodide gas is produced.

Explanation

Dehydrohalogenation of alkyle is another type of elimination reaction.

$RCH_2-CXH_2\overset{KOH/C_2H_5OH}\rightarrow RCH=CH_2+HX$

When dehydrohalogenation of ethyl iodide is carried out HI gas is produced.

$CH_3-CH_2I \overset{KOH/C_2H_5OH}\rightarrow CH_2=CH_2+HI$