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Entry Test MCQ :: Aldehydes and Ketones


1.  Which of the following substance produce acetaldehyde on dry distillation?
A. (CH3COO)2Ca B. (HCOO)2Ca
C. both (a) and (b) D. none

2.  Which of the following will have the highest boiling point?
A. methanal B. ethanal
C. propanal D. hexanone

3.  Which of the following reaction is not shown by ketones?
A. reaction with HCN B. reaction with NaHSO3
C. reaction with 2 4 dinitrophenyl hydrazine D. reaction with Fehling solution

4.  The carbon atom of carbonyl group is
A. sp hybridized B. sp2 hybridized
C. cp3 hybridized D. dsp2 hybridized

5.  Which of the following substances does not give iodoform test?
A. acetaldehyde B. ethyl alcohol
C. methyl alcohol D. acetone

6.  Formalin is _______ % solution of formaldehyde in water
A. 10% B. 20%
C. 40% D. 60%

7.  Which of the following aldehydes shows rapid reaction with sodium nitroprusside?
A. formaldehyde B. accetaldehyde
C. benzaldehyde D. acetone

8.  Acetone reacts with HCN to form a cyanohydrin. It is an example of
A. electronphilic addition B. electrophilic substitution
C. nucleophilic addition D. nucleophilic substitution

9.  Which of the following compounds will react with Tollens reagent?
A. CH3-CHO B. CH3-CH-CH3
C. CH3-COOH D. CH3-CO-CH2-CH3

10.  Which of the following reactions may be assoclated with aldehyde and ketone?
A. nucleophile addition B. polymerization
C. oxidation D. all of the above




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