LEC ALDEHYDES AND KETONES

Question 1

They are the intermediate products in the oxidation of primary alcohols

Answer 1

Aldehydes

Question 2

General formula for ketones

Answer 2

RCOR

Question 3

Functional group in aldehydes

Answer 3

-CHO

Question 4

T or F. Carbaldehydes are cyclic aldehydes

Answer 4

False

Question 5

T or F. Benzophenone is a heterocyclic ketone

Answer 5

False

Question 6

What is the common name for methanal

Answer 6

Formaldehyde

Question 7

T or F. Enanthaldehyde exists as liquid at room temperature

Answer 7

True

Question 8

Which of the following boils readily?
A. n-Pentane
B. Butyraldehyde
C. 2-Butanone
D. n-Butyl alcohol

Answer 8

A. n-Pentane

Question 9

What is form from the reaction of 3-Chloro-2-pentanol with potassium permanganate?

Answer 9

3-Chloro-2-pentanone

Question 10

What is form from the reaction of Isobutyl alcohol with potassium dichromate?

Answer 10

2-Methylpropanal

Question 11

T or F. 3-Pentanone reacts with Tollen’s reagent by redox reaction.

Answer 11

False

Question 12

T or F. Reaction of 3-Pentanone with Hydrogen gas in the presence of Nickel catalyst forms a secondary alcohol.

Answer 12

True

Question 13

T or F. Reaction of Cyclohexanecarbaldehyde with oxygen forms Cyclohexanoic acid.

Answer 13

True

Question 14

T or F. Reaction of Cyclohexanecarbaldehyde with hydrogen in the presence of nickel catalyst forms a secondary alcohol.

Answer 14

False

Question 15

T or F. Carbonyl group makes acetone to be miscible with water.

Answer 15

True