Question

Find compound (x) which give following test
Neutral ${\text{FeCl}}_3\to –ve$
Fehling solution $\to –ve$
Iodoform reaction $\to +ve$
Grignard reagent $\to +ve$

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

$\to$Neutral $FeC{l}_3-ve\Rightarrow$Phenol is absent.
This test is not given by alkyl alcohol given by Aryl alcohol.
$\to$Fehling solution $-ve\Rightarrow \text{-CHO}$ is absent.
This test is given by aldehyde only not shown by keto groups.
$\to$Positive iodoform test is given by:
Grignard reagent positive test $\Rightarrow$ Electrophilic centre of acidic $H$ is present as well as keto group.
Hence, compound (A) obeys all above statements