Identify the material that is completely soluble in water from the following: A) Face powder B) Glucose C) Tea leaves D) Lime powder. 2. Which two processes, in sequence, help in obtaining pure water

Here are the solutions to your questions:

1. Identify the material that is completely soluble in water from the following:

• A) Face powder: Generally insoluble.
• B) Glucose: Completely soluble in water.
• C) Tea leaves: Insoluble.
• D) Lime powder: Sparingly soluble.

The material that is completely soluble in water among the given options is glucose.

• The correct option is B) Glucose.

2. Look at the picture given below. Salt water is heated in the kettle. Which two processes, in this sequence, help in obtaining pure water from salt water?

The image shows a distillation process.

• Step 1: When salt water is heated in the kettle, the water turns into steam (vapor), leaving the salt behind. This process is called evaporation.
• Step 2: The steam rises and comes into contact with the cooler plate, where it changes back into liquid water droplets. This process is called condensation.

Therefore, the two processes in sequence are evaporation and condensation.

• The correct option is A) evaporation and condensation.