Question

The compounds which yield iodo ethane as a major product when reacted with hydrogen iodide

Answer 1

Answer:

Answer:

●Hydrogen iodide (HI) is a diatomic molecule and hydrogen halide.

●Aqueous solutions of HI are known as hydroiodic acid or hydriodic acid, a strong acid.

●They are interconvertible. HI is used in organic and inorganic synthesis as one of the primary sources of iodine and as a reducing agent.

Answer 2

The compounds which yield iodoethane as a major product when reacted with hydrogen iodide are ethers.

Explanation:

• Ethers are compounds having two alkyl groups bonded to an oxygen atom represented as $R-O-R$.
• The compound with the molecular formula $\[{C_2}{H_5} - O - {C_2}{H_5}\]$ is called Diethyl ether or simply ether.
• When diethyl ether is heated with concentrated hydrogen iodide, the breaking of $C-O$ of the ether occurs and alkyl iodide and alcohol are formed.

        $\[{C_2}{H_5} - O - {C_2}{H_5} + HI\xrightarrow{{Heat}}{C_2}{H_5}I + {C_2}{H_5}OH\]$

• When diethyl ether reacts with an excess of conc. $HI$ and boiled, alkyl iodide or iodoethane is formed.
• The reaction is given as:   $\[{C_2}{H_5} - O - {C_2}{H_5} + HI(excess)\xrightarrow{{Boil}}2{C_2}{H_5}I + {H_2}O\]$
• Therefore, the compounds which yield iodoethane as a major product when reacted with hydrogen iodide are ethers.

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