Chemical Tests

Question 1

What is the primary test used to detect alcohols?

Answer 1

The primary test used to detect alcohols is the Lucas test.

Question 2

True or False: Alkenes can be tested using bromine water.

Answer 2

True

Question 3

Fill in the blank: The reaction of an aldehyde with _____ produces a silver mirror in the Tollens’ test.

Answer 3

AgNO3

Question 4

What color change indicates the presence of alkenes when using bromine water?

Answer 4

The bromine water turns from brown to colorless.

Question 5

Which reagent is used in the Fehling’s test to identify aldehydes?

Answer 5

Fehling’s solution

Question 6

Multiple choice: Which of the following is NOT a test for carboxylic acids? A) Litmus test B) Bromine water C) Sodium bicarbonate reaction

Answer 6

B) Bromine water

Question 7

What is the result of the sodium bicarbonate test for carboxylic acids?

Answer 7

The formation of carbon dioxide gas.

Question 8

True or False: Alcohols are oxidized to carboxylic acids.

Answer 8

True

Question 9

What is the characteristic smell of aldehydes?

Answer 9

Aldehydes often have a sweet or fruity smell.

Question 10

Fill in the blank: The _____ test is used to confirm the presence of primary and secondary alcohols.

Answer 10

Lucas