Question

Which of the following mixtures is unstable :(a) Water+Sugar (b) Water +Sand (c) Water+salt (d) Water +Copper sulphate

Answer 1

Answer:

water+sand is unstable

Answer 2

Answer:

water + sand

Explanation:

Note sugar, salt and copper sulphate dissolves in water. However sand can't dissolve in water. It precipitate in water. So, water + sand is an unstable mixture.