List of top Chemistry Questions on Chemical Reactions of Aldehydes Ketones and Carboxylic Acids

In the following reactions, find the product A and B

The major product formed in the following reaction is-

Given below are two statements. one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A:

can be subjected to Wolff-Kishner reduction to give

Reason R: Wolff-Kishner reduction is used to convert

into

In the light of the above statements, choose the correct answer from the options given below:

In a reaction,

reagents ' $X$ ' and ' $Y$ ' respectively are :

$CH_3 - CH_2 - CN \xrightarrow[\text{Ether}]{CH_3MgBr} A \xrightarrow{H_3O^+} B \xrightarrow[HCl]{Zn - Hg} C$ The correct structure of $C$ is

Number of isomeric compounds with molecular formula $C _9 H _{10} O$ which (i) do not dissolve in $NaOH$ (ii) do not dissolve in $HCl$ (iii) do not give orange precipitate with 2,4-DNP (iv) on hydrogenation give identical compound with molecular formula $C _9 H _{12} O$ is _________

The number of molecules which gives haloform test among the following molecules is

Arrange the following in decreasing acidicstrength

Predict the products in the given reaction.

Choose the correct answer from the options given below:

Identify the product in the following reaction:

An acidified manganate solution undergoes disproportionation reaction. The spin-only magnetic moment value of the product having manganese in higher oxidation state is ____ B.M. (Nearest integer)

Which of the following conditions or reaction sequence will NOT give acetophenone as the major product?

The activation energy of one of the reactions in a biochemical process is 532611 J mol^–1. When the temperature falls from 310 K to 300 K, the change in rate constant observed is k₃₀₀ = x × 10^–3 k₃₁₀. The value of x is ______.

[Given: ln10 = 2.3, R = 8.3 JK^–1 mol^–1]

Amongst the following, the major product of the given chemical reaction is

Amongst the following, the major product of

Hydrolysis of which compound will give carbolic acid?

Given below are two statements.

Statement I : Phenols are weakly acidic.

Statement II : Therefore they are freely soluble in NaOH solution and are weaker acids than alcohols and water.

Choose the most appropriate option.

The major product formed in the following reaction, is

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Phenolphthalein is a pH dependent indicator, remains colourless in acidic solution and gives pink colour in basic medium.
Reason R: Phenolphthalein is a weak acid. It doesn’t dissociate in basic medium.
In the light of the above statements, choose the most appropriate answer from the options given below.

Considering the reaction sequence given below, the correct statement(s) is(are)

Statement I: The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole - dipole interactions
Statement II: The boiling points of aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of H-bonding.
In the light of the above statements choose the most appropriate answer from the options given below:

Considering the reaction sequence given below, the correct statement(s) is(are)

Treating P with conc. NH4OH solution followed by acidification gives Q.

Two isomers (A) and (B) with Molar mass 184 g/mol and elemental composition C, 52.2%; H, 4.9 % and Br 42.9% gave benzoic acid and p-bromobenzoic acid, respectively on oxidation with KMnO₄. Isomer ‘A’ is optically active and gives a pale yellow precipitate when warmed with alcoholic AgNO₃. Isomers ‘A’ and ‘B’ are, respectively.

Given below are two statements:

Statement I: The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.

Statement II: Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction.

Choose the most appropriate option

Given below are two statements one is labelled as Assertion A and the other is labelled as Reason R:

Assertion A: The amphoteric nature of water is explained by using Lewis acid/base concept

Reason R: Water acts as an acid with NH3 and as a base with H₂S.

In the light of the above statements choose the correct answer from the options given below:

List of top Chemistry Questions on Chemical Reactions of Aldehydes Ketones and Carboxylic Acids

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