Question

We sprinkle water in a dirty room before sweeping because:

• A. water makes sweeping easier
• B. water repels dust particles
• C. water coagulates the dust particles
• D. sprinkling water is fashionable

Answer 1

The correct option is C water coagulates the dust particles

Dust particles get attached to the water droplets and hence they can be easily cleaned;

so, sprinkling water in a dirty room coagulates the dust particles.