(B) Vanillin $(4\text{-hydroxy-}3\text{-methoxybenzaldehyde})$ is an organic compound with the molecular formula $C_8H_8O_3$.Structurally, it contains

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(B) Vanillin $(4\text{-hydroxy-}3\text{-methoxybenzaldehyde})$ is an organic compound with the molecular formula $C_8H_8O_3$.Structurally, it contains an aldehyde group $(-CHO)$, a phenolic hydroxyl group $(-OH)$, and a methoxy group $(-OCH_3)$ attached to a benzene ring.Thus, the correct set of functional groups is $-CHO, -OH, -OCH_3$.

Class 12 Chemistry 8-1.Aldehydes and Ketones Introduction

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Identify the functional group present in Vanillin.

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A
$-COOH, -OH, -OC_2H_5$
B
$-CHO, -OH, -OCH_3$
C
$-COOH, -CH_3, -OCH_3$
D
$-CHO, -OH, -OC_2H_5$

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8-1.Aldehydes and Ketones

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Introduction

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Match the common names given in Column-$I$ with the $IUPAC$ names given in Column-$II$.

Column-$I$ (Common names) Column-$II$ ($IUPAC$ names)

$A$. Cinnamaldehyde $1$. Pentanal

$B$. Acetophenone $2$. Prop-$2$-en-$al$

$C$. Valeraldehyde $3$. $4$-Methylpent-$3$-en-$2$-one

$D$. Acrolein $4$. $3$-Phenylprop-$2$-en-$al$

$E$. Mesityl oxide $5$. $1$-Phenylethanone

Column-$I$ (Common names)	Column-$II$ ($IUPAC$ names)
$A$. Cinnamaldehyde	$1$. Pentanal
$B$. Acetophenone	$2$. Prop-$2$-en-$al$
$C$. Valeraldehyde	$3$. $4$-Methylpent-$3$-en-$2$-one
$D$. Acrolein	$4$. $3$-Phenylprop-$2$-en-$al$
$E$. Mesityl oxide	$5$. $1$-Phenylethanone