A compound C5H10O (A) forms a phenyl - hydrazone and gives negative Tollen's test and a positive Iodoform reaction. It also gives n -pentane on reduction. The compound (A) is

Question

A compound C5H10O (A) forms a phenyl - hydrazone and gives negative Tollen's test and a positive Iodoform reaction. It also gives n -pentane on reduction. The compound (A) is (A) pentanal (B)  2 - pentanone (C)  3 - pentanone (D) allyl alcohol

Tardigrade Admin · Accepted Answer

Since, the compound (A) gives a positive iodoform test but negative Tollen's test, so it must be a methyl ketone. From the given molecular formula C5H10O(A) can be 2-pentanone Following reactions are involved:

Iodoform test

Q. A compound $C_{5} H_{10} O (A)$ forms a phenyl - hydrazone and gives negative Tollen's test and a positive Iodoform reaction. It also gives $n$ -pentane on reduction. The compound $(A)$ is

pentanal

$2$ - pentanone

$3$ - pentanone

allyl alcohol

Since, the compound $(A)$ gives a positive iodoform test but negative Tollen's test, so it must be a methyl ketone. From the given molecular formula $C_{5} H_{10} O (A)$ can be $2$ -pentanone
Following reactions are involved:

Iodoform test

Q. A compound C5​H10​O(A) forms a phenyl - hydrazone and gives negative Tollen's test and a positive Iodoform reaction. It also gives n -pentane on reduction. The compound (A) is

pentanal

2 - pentanone

3 - pentanone

allyl alcohol

Since, the compound (A) gives a positive iodoform test but negative Tollen's test, so it must be a methyl ketone. From the given molecular formula C5​H10​O(A) can be 2-pentanone Following reactions are involved: Iodoform test

Q. A compound $C_{5} H_{10} O (A)$ forms a phenyl - hydrazone and gives negative Tollen's test and a positive Iodoform reaction. It also gives $n$ -pentane on reduction. The compound $(A)$ is

$2$ - pentanone

$3$ - pentanone

Since, the compound $(A)$ gives a positive iodoform test but negative Tollen's test, so it must be a methyl ketone. From the given molecular formula $C_{5} H_{10} O (A)$ can be $2$ -pentanone
Following reactions are involved:

Iodoform test