1.

A compound C_(3)H_(8)O is inert to sodium and when heated with excess HI yields a mixture of methyl iodide and ethyl iodide. What is the structure and name of the compound?

Answer»

Ethyl methyl ether
Diethyl ether
DIMETHYL ether
Isopropyl alcohol

Solution :The formula `C_(3)H_(2)O` represents, either the compound is an alcohol or ether, as it is saturated and contains ONE OXYGEN atom. But the compound is inert to sodium, so it is an ether, because only alcohol reacts with sodium metal. Again the ether when heated with HI yields a mixture of methyl iodide and ethyl iodide, so it is ethyl methyl ether (`C_(2)H_(5)-O-CH_(3)`)
`underset("(Ethyl methyl ether)")(C_(2)H_(5))-O-CH_(3)+2HI overset(Delta)to C_(2)H_(5)-I+CH_(3)-I+H_(2)O`


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