CBSE Class 12 Aldehydes Ketones and Carboxylic Acids with Answers Multiple Choice Questions with Answers. MCQ Questions Class 12 Aldehydes Ketones and Carboxylic Acids with Answers with Answers Is Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 12 Aldehydes Ketones and Carboxylic Acids with Answers MCQs with Answers to know their preparation level.
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MCQ Questions Class 12 Aldehydes Ketones and Carboxylic Acids with Answers - Set - 3
Question 1:
Which one of the following acid does not have a carboxylic group?
(a) Methanoic acid
(b) Ethanoic acid
(c) Propanoic acid
(d) Picric acid
Correct Answer – (D)
Question 2:
The correct increasing order of the acid strength
(I) ofbenzoic acid
(II) 4-nitrobenzoic acid
(III) 3, 4-dinitrobenzoic acid
(IV) 4methoxybenzoic acid is
(a) I < II < III < IV
(b) II < I < IV < III
(c) IV < I < II < III
(d) IV < II < I < III
Correct Answer – (C)
Question 3:
A liquid was mixed with ethanol and a drop of concentrated H2SO4 was added. A compound with a fruity smell was formed. The liquid was
(a) CH3OH
(b) HCHO
(c) CH3COCH3
(d) CH3COOC2H5
Correct Answer – (D)
Question 4:
Which of the following will form two isomers with semi carbazide ?
(a) Benzaldehyde
(b) Acetone
(c) Benzoquinone
(d) Benzophenone
Correct Answer – (A)
Question 5:
Which of the following does not give Fehling solution test?
(a) Acetone
(b) Propanal
(c) Ethanal
(d) Butanal
Correct Answer – (A)
MCQ Questions Class 12 Aldehydes Ketones and Carboxylic Acids With Answers
Question 6:
Vinegar is dilute aqueous solution of
(a) ethanoic acid
(b) benzoic acid
(c) citric acid
(d) oxalic acid
Correct Answer – (A)
Question 7:
2-pentanone and 3-petanone can be distinguished by
(a) Cannizzaro’s reaction
(c) Iodoform reaction reduction
(b) Aldo! condensation
(d) Clemmensen’s
Correct Answer – (C)
Question 8:
In the reaction
CH3COOH →LiAIH4 A →PCl5 B →Ale.KOH C, the product C is
(a) acetaldehyde
(b) acetylene
(c) ethylene
(d) acetyl chloride
Correct Answer – (C)
Question 9:
Aldo! condensation is given by
(a) trimethyl acetaldehyde
(b) acetaldehyde
(c) benzaldehyde
(d) formaldehyde
Correct Answer – (B)
Question 10:
The reaction of an organic compound with ammonia followed by nitration of the product gives a powerful explosive, called RDX. The organic compound is
(a) phenol
(b) toluene
(c) glycerine
(d) formaldehyde
Correct Answer – (D)
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