1. Conversion of water into water vapor is known as   Vaporization   Boiling   Freezing   Condensation   Hint Half-n-half Clue   2. A salt which absorbs water is called:   Hygroscopic Salt   Anhydrous Salt   Hydrophilic Salt   Hydrophobic Salt   Half-n-half Clue   3. The process of conversion of water vapor to water on the surface of a cold glass tumbler is known as   Condensation   Evaporation   Boiling   Vaporization   Half-n-half Clue   4. Water in solid form is known as   Ice   Soda   Crystal   Dry Ice   Half-n-half Clue   5. Water which is absolutely pure and free from any impurity is known as   Distilled Water   Mineral Water   Spring Water   Boiled Water   Half-n-half Clue   6. It is easy to make lather with hard water.   True   False   7. Chlorine is added to drinking water to kill microbes that cause illness. This is known as   Chlorination   Elimination   Microbe Termination   Vaporization   Half-n-half Clue