Question

Which of the following is used to stir a mixture or solution in the laboratory?

• A. Glass rod
• B. Glass tube
• C. Pipette
• D. Capillary tube

Answer 1

The correct option is A

Glass rod

Explanation for the correct option:

Option A

• Glass rod is used to stir a mixture or solution in the laboratory.
• It is usually made of solid glass.
• It provides controlled agitation to the reaction ·
• It does not react with chemicals.

Therefore, option A is correct.

Explanation for the incorrect option:

Option B

• Glass tube is basically a test tube made up of glass.
• It is used to heat small quantities of liquid or mix different liquids.

Therefore, option B is incorrect.

Option C

• Pipette is a tube open at both ends.
• One end is tapered.
• It is used to transfer a small measured quantity of liquid from one container to another.

Therefore, option C is incorrect.

Option D

• Capillary tube is a narrow tube made up of glass.
• It is used to transferring counted drops of liquids from one container to another.

Therefore, option D is incorrect.