Question

8 multiple choice 1 point why is methanol handled in a fume hood during heating? methanol fumes are toxic and flammable. fume hood provides cooling during heating. methanol reacts with water in air. methanol fumes promote crystallization.

Explanation:

To determine the correct answer, we analyze each option:

• Option 1: Methanol fumes are toxic and flammable. Fume hoods are used to contain and remove hazardous fumes, so this makes sense for handling methanol during heating.
• Option 2: Fume hoods are not primarily for cooling; their main function is to manage fumes, so this is incorrect.
• Option 3: Methanol is miscible with water but doesn't react with atmospheric water in a way that requires a fume hood for heating, so this is wrong.
• Option 4: Methanol fumes do not promote crystallization; this is not a property related to fume hood use, so this is incorrect.

Answer:

A. Methanol fumes are toxic and flammable.