Q3 of 6 Page 121

Give scientific reasons.

(a) A condenser has two taps.


(b) At dawn, in winter, we see dewdrops on leaves of trees.

(a) The condenser has two taps, one is for the inlet of water whereas the other is for the outlet of water.


(b) Some amount of water is present in the environment in the form of water vapours and at the time of dawn, temperature falls Down and water vapour gets cooled and is converted in the form of water droplets and gets collected on leaves.


More from this chapter

All 6 →
1

Define.

(a) Melting point


(b) Boiling point


(c) Distillation.

 2

Draw a labelled diagram showing the process of distillation.

 4

Match the following.

 5

Answer the following questions.

(a) What will you do to find out the boiling point of water?


(b) What changes do you see in the appearance of a candle after you have lit it?


(c) Can a solid and a solvent be separated from their solution by distillation?