Multiple choice

How would you differentiate between chalk powder and salt without tasting them?

  1. By dissolving them in water

  2. By observing the size of particles

  3. By sieving

  4. By heating

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

Chalk powder is insoluble and salt is soluble in water. So, we will dissolve both the substances in separate test tubes. The one which gets dissolved will be salt and the other which is insoluble is chalk powder.