NEET Questions Solved


Aldehydes and ketones will not form crystalline derivatives with                            

(a) sodium bisulphite

(b) phenyl hydrazine

(c) semicarbazide hydrochloride

(d) dihydrogen sodium phosphate

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level:


Acetone reacts with iodine (I2) to form iodoform in the presence of

(a) CaCO3          (b) NaOH          (c) KOH            (d) MgCO3

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level:


Which of the following compounds with molecular formula, C5H10 yields acetone on ozonolysis? 

(a) 2-methyl-2-butene

(b) 3-methyl-1-butene

(c) Cyclopentane

(d) 2-methyl-1-butene

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level:


Among acetic acid, phenol and n-hexanol which one of the following compound will react with NaHCO3 solution to give sodium salt and CO2?                                             

(a) Acetic acid

(b) n-hexanol

(c) Acetic acid and phenol

(d) Phenol

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level:


The reagent used for the separation of acetaldehyde from acetophenone is

(1) NaHSO3         (2) C6H5NHNH2            (3) NH2OH              (4) NaOH and I2

 

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level:


Iodoform test is not given by

(a) 2-pentanone                  (b) ethanol

(c) ethanal                          (d) 3-pentanone

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level:


Products of the following reaction                                   

  CH3CC.CH2CH3 (ii) hydrolysis(i) O3 ... are

(a) CH3CHO + CH3CH2CHO

(b) CH3COOH + CH3COCH3

(c) CH3COOH + HOOC.CH2CH3

(d) CH3COOH + CO2

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level:


Which alkene on ozonolysis gives CH3CH2CHO and CH3COCH3?                                          

(a) CH3CH2CH=C<CH3CH3

(b) CH3CH2CH=CHCH2CH3

(c) CH3CH2CH=CHCH3

(d) CH3-C|=CHCH3           CH3

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level:


Which one of the following on oxidation gives a ketone?                       

(a) primary alcohol                     (b) secondary alcohol

(c) tertiary alcohol                      (d) All of these

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level:


Consider the following transformations

CH3COOH CaCO3AheatBNaOHI2C The molecular formula of C is                       

 

Concept Videos :-

#1 | Preparation of Carbonyl Compounds: I
#2 | Preparation of Carbonyl Compounds: II
#3 | Aromatic Carbonyl Compounds
#4 | Properties of Carbonyl Compounds: I
#5 | Properties of Carbonyl Compounds: II
#6 | Properties of Carbonyl Compounds: III

Concept Questions :-

Preparation & properties of Aldehydes and Ketones
Explanation is a part of a Paid Course. To view Explanation Please buy the course.

Difficulty Level: