Question

Compound `(X)C_(9)H_(10)O` in inert to `Br_(2)//"CC"l_(4)`. Vigorous oxidation with hot alkaline `KMnO_(4)//ObarH` yields `C_(6)H_(5)COOH` . `(X)` gives precipitate with 2,4,-dinitrophenyl hydrazine. How casn these isomers be distinguished by the usual chemical tests?
Following are possible isomers of `X`:
(I) `C_(6)H(5)-CH_(2)-CH_(2)-CHO`
`CH_(6)H_(5)-underset(CH_(3))underset(|)(CH)-CHO`
(III) `C_(6)H_(5)-CH_(2)-overset(O)overset(||)(C)-CH_(3)`
(IV) `CH_(6)H_(5)-overset(O)overset(||)(C)-CH_(2)-CH_(3)`
A. I give red ppt with Fehling solution and II & III canbe distinguished by iodoform test
B. I & II canbe distinguished by simple chemcial method
C. I & II give red ppt. with Fehlilng solution and III & IV can be distinguished by iodoform test
D. II give red ppt. Fehling solution and I & IV can be distinguished by iodoform test.

Answer 1

Correct Answer - A::C
By the condition of the question. I & IV both compounds do not gie iodoform test ad I & II both are gives similar test