NEETprep Bank NEET Chemistry Aldehydes, Ketones and Carboxylic Acids 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
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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
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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
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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
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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
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Complete Question Bank

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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
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Two isomeric ketones 3-Pentanones and 2-pentanone can be distinguished by

(a) I2/NaOH only               (b) NaHSO3 only

(c) NaCN/HCl                     (d) both of (a) and (b)   

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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
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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
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Complete Question Bank

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The major organic product formed from the following reaction

 (ii) LiAlH4  (iii) H2O(i) CH3NH2 ... is

(a)                    (b) 

(c)                  (d) 

 

Concept Videos :-

#7 | Properties of Carbonyl Compounds: IV
#8 | Aldol Condensation
#9 | Perkin Reaction
#11 | Tischenko & Cannizzaro Reaction

Concept Questions :-

Nucleophillic Addition, Reactivity of Alpha Hydrogen in Aldehydes with Uses
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