Multiple choice

Consider the following statements:

  1. Amalgams are compounds that always contain aluminium.
  2. Mercury is known to pollute the air of big cities with a large number of vehicles.

Which of the given statements is/are incorrect?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2

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

Statement 1 is incorrect. Amalgams are compounds that always contain mercury (Hg). Statement 2 is also incorrect. Lead is known to pollute the air of big cities with a large number of vehicles.