List of top Chemistry Questions on Aldehydes, Ketones and Carboxylic Acids asked in MHT CET

Identify the reaction so that carbonyl group of aldehydes and ketones is reduced to methylene group on treatment with Zinc-amalgam and concentrated hydrochloric acid.
Identify the reagent used for Rosenmund reduction.
Which among the following is dicarboxylic acid?
Which of the following compounds gives a secondary alcohol upon reaction with methylmagnesium bromide?
Which of the following reagents is used in Rosenmund reduction?
Identify the product ' B ' in the following sequence of reactions.
\[ \text{Ethanenitrile} \xrightarrow{\text{SnCl}_2, \text{HCl}} \text{A} \xrightarrow{\text{H}_3\text{O}^+} \text{B} + \text{NH}_4\text{Cl} \]
Identify the product formed in the following reaction.
\[ \text{CH}_3 - \text{CH} = \text{CH} - \text{CH}_2 - \text{CHO} \xrightarrow[ii) \text{ H}_3\text{O}^+]{i) \text{ LiAlH}_4} \text{product} \]

The number of \(\pi\)-bonds present in benzoic acid is:

Which of the following is a method for the preparation of benzaldehyde?
The Rosenmund reduction involves the reduction of which of the following compounds?

Identify the product 'B' in the following reaction:

\(CH_3MgBr \xrightarrow{\text{Dry ice, Dry ether}} A \xrightarrow{\text{dil. HCl}, H_2O} B\)

What type of reaction is the formation of aldol from aldehyde?
Identify the product 'B' in following reaction.
$\text{Ethyl phenyl ketone} \xrightarrow{H_2N-NH_2} A \xrightarrow{KOH, HO-(CH_2)_2-OH} B$
Which among the following is NOT dicarboxylic acid?
Which of the following is Clemmensen reduction?

The first oxidation of a secondary alcohol is?

Aldol condensation between which of the following compounds followed by dehydration gives 4-Methylpent-3-en-2-one.

What is IUPAC name of mesityl oxide?

What is the use of HCl/Sn reagent?

Which among the following carboxylic acids is found in Lemon?

Identify the product B in the following reaction.
Benzoyl chloride + H2O \(\rightarrow\) B + HCl

Which among the following is a pair of dicarboxylic acids?
Identify 'A' in following reaction.
$$\mathrm{A} \xrightarrow{\text{Dimethyl cadmium}} \text{propanone} + \text{cadmium chloride}$$
Identify the product 'B' in following reaction:
$2\text{CH}_3\text{CHO} \xrightarrow{\text{dil. NaOH}} \text{A} \xrightarrow[-\text{H}_2\text{O}]{\Delta} \text{B}$
Identify the reagent used in following conversion:
Pent-3-enenitrile $\xrightarrow{\text{A}}$ pent-3-enal