Multiple choice

Which of the following substances will have variable composition?

  1. Tea

  2. Water

  3. Sugar

  4. Salt

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

Water (H2O), sugar (C12H22O11) and salt (NaCl) are compounds as they are made of two or more elements chemically combined in a fixed ratio by mass. Therefore, they have definite compositions. Tea is a mixture of different compounds like water, sugar, milk, tea leaves, etc. and therefore, it has variable composition and there is no chemical bond between its components. Thus, tea is a mixture.