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NEET previous year chemistry Question Aldehydes, Ketons and Carboxylic Acids

1.

a)          b)

c)          d)                                                (c )

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2. Reaction by which benzaldehyde cannot be prepared

a)

b)

c)

d)                                                       (b)

3.

a) C6H5CHO                  (b) C6H5OH

(c) C6H5COCH3            (d) C6H5Cl                         (a)

4. Which one of the following can be oxidized to the corresponding carbonyl compound?

(a) 2-Hydroxypropane      (b) ortho-Nitrophenol

(c) Phenol

(d) 2-Methyl-2-hydroxypropane                           (a)

5.

(a) RCH2OH          (b) RCOOH

(c) RCHO               (d) RCH3                                                                (c)

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6. Which alkene on ozonolysis gives CH3CH2CHO and CH3COCH3?

a)

b)

c)

d)                                                (a)

7.

(a) Acetaldehyde             (b) Ethan amine

(c) Acetone                      (d) dimethylamine

10. Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as

(a) Aldol condensation

(b) Cannizzaro’s reaction

(c) Cross Cannizzaro’s reaction

(d) Cross Aldol condensation.                                  (a)

11.