Multiple choice

What is the reason for this?

Lead can float on the surface of mercury.

  1. Mercury is very reactive.

  2. Lead is very reactive.

  3. Lead is more denser than mercury.

  4. Mercury is more denser than lead.

  5. Mercury is lighter than lead.

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

It is because lead is less denser than mercury. Mercury is very heavy weighing 13.6 times to that of volume of water. Stone, iron, and even lead can float on its surface.