An example of a homogeneous mixture is :

1. distilled water
2. tap water
3. sand and water
4. sawdust and water

Which among the following is a set containing only mixtures ?

1. gold, common salt, water, alloy
2. alloy, ink, honey, ice-cream
3. alloy, mercury, air, sea water
4. milk, duralumin, brass, silver.

Which of the following is not a mixture?

1. Sugar solution
2. Tap water
3. Milk
4. Distilled water

Which of the following is a mixture ?

1. Sugar
2. Honey
3. Common salt
4. Iron sulphide