Blog Log in Get Started Free

Aldehyde ketones & carboxylic Acid MCQs for NEET — Chemistry Questions with Answers

Q: Are these Aldehyde ketones & carboxylic Acid questions free to attempt?

Yes. You can attempt every Aldehyde ketones & carboxylic Acid question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

Q: Do I need an account to practise Aldehyde ketones & carboxylic Acid MCQs?

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

Q: Are these previous year NEET questions?

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.

Practice free Aldehyde ketones & carboxylic Acid (Chemistry) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

All Physics Chemistry Botany Zoology

Language English हिंदी

Chapter Difficulty Show only questions I answered incorrectly Clear Register free for difficulty & keyword filters

● ● ● ● ●

Which of the following hybrides is most acidic

H₂Te

H₂Se

H₂O

H₂S

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

Due to weak bond H₂Te can furnish hydrogen more readily.The increasing order of acidic nature is

H₂O < H₂S < H₂Se < H₂Te

● ● ● ● ●

Among the following reactions, in which of the following, a blue complex will be formed when starch solution is added?

(A) When chlorine is passed through NaI

(B) Sodium iodate is treated with sodium bisulphite solution

(D) KI is added to bleaching powder containing dilute acetic acid

A, C

A, D,

B, C, D

A,B,C,D

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

All above are correct

● ● ● ● ●

Which one is most basic in character?

$F^{-}$

$C l^{-}$

$B r^{-}$

$I^{-}$

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

Acidic strength is in the order
HI > HBr > HCl > HF
So the conjucate bases are
I^- < Br^- < Cl^- < F-
Thus fluoride ion is the strongest base and iodide ion â€‹is the weakest base

● ● ● ● ●

Assertion : Ammonical silver nitrate converts glucose to gluconic acid and metallic silver is precipitated.

Reason : Glucose acts as a weak reducing agent.

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion C. If the assertion is true but the reason is false D. If both the assertion and reason are false

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(A) ${Ag}_{2} O + C_{6} H_{12} O_{6} \overset{}{\to} 2 Ag + C_{6} H_{12} O_{7}$

● ● ● ● ●

Which of the following reacts with water

CHCl₃

CCl₄

CCl₃CHO

CH₂ClCH₂Cl

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

CCl₃CHO $\to$ CCl₃CH(OH)₂

● ● ● ● ●

The commonly used dehydrating agent in the preparation of an ester is :

P₂O₅

anhydride CaCl₂

anhydride AlCl₃

conc. H₂SO₄

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(d) H₂SO₄ acts as catalyst as well as dehydrating agent for the reaction,

CH₃COOH+HOC₂H₅ $\overset{H_{2} {SO}_{4}}{\to}$ CH₃COOC₂H₅

● ● ● ● ●

Succinic acid $\overset{∆}{\to}$ (A) $\to_{∆}^{{NH}_{3}}$ (B) $\to_{KOH}^{{Br}_{2}}$ (C); Product (C) will be:

$\begin{matrix} \underset{|}{{CH}_{2}} & - & {CO}_{2} H \\ {CH}_{2} & - & \begin{matrix} {CH}_{2} & \begin{matrix} - & {NH}_{2} \end{matrix} \end{matrix} \end{matrix}$

$\begin{matrix} \underset{|}{{CH}_{2}} & - & {CO}_{2} H \\ {CH}_{2} & - & {NH}_{2} \end{matrix}$

$\begin{matrix} \underset{|}{{CH}_{2}} & - & {CO}^{-}_{2} K^{+} \\ {CH}_{2} & - & {NH}_{2} \end{matrix}$

$\begin{matrix} \underset{|}{{CH}_{2}} & - & {CO}_{2} H \\ {CH}_{2} & - & \begin{matrix} {CH}_{2} & \begin{matrix} - & Br \end{matrix} \end{matrix} \end{matrix}$

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The reaction involves the conversion of succinic acid to its potassium succinate salt by treatment with potassium hydroxide (KOH). The carboxyl groups are deprotonated, and the resulting negative charges are balanced by the potassium cations (K+).

● ● ● ● ●

(A) _{→ B + C; (B) and (C) both gives +ve iodoform test.Compound (A) is:-}
C₅H₁₀O H₃O+

CH₃-CH=CH-O-CH₂-CH₃

H
l

CH₃-C-O-CH₂-CH₃
l
CH₃

CH₃-C-O-CH₂-CH₃
ll
CH₂

Both (b) and (c)

You've reached today's free limit of 20 questions. Log in to keep practising for free.

● ● ● ● ●

A solution of Ph₃CCO₂ in conc. H₂SO₄ gives (X) when poured into methanol X is :-
O
ll

Ph₃C-C-O-CH₃

O
ll

Ph₂CH-C-O-CH₃

Ph3C-OCH3

Ph₃C-CH₃

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

When triphenylacetic acid (Ph3CCO2H) reacts with concentrated H2SO4 and the resulting solution is poured into methanol, the expected product is triphenylmethyl methyl ether (Ph3C-OCH3), which is option o3.

● ● ● ● ●

Which of the following methods cannot be used for the preparation of an ester?

RCOOH+ R'OH+OH-

RCOCl+R'OH+Pyridine

RCOOH+R’OH+H⁺

(RCO)₂O+R'OH+Pyridine

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

(a) RCOOH+HOR'→RCOOR'
H+ Ester

RCOCl+HOR'→RCOOR'+HCl
Pyridine
(RCO)₂O+2HOR'→RCOOR'+H₂O
Pyridine
The esterification by RCOOH and R'OH does not take place in alkaline medium.

Ready to ace NEET?

Free access · No credit card required

Browse All Questions Create Free Account

Frequently Asked Questions

Yes. You can attempt every Aldehyde ketones & carboxylic Acid question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.