Take a saucepan with a handle and hold it over a vessel in which water is boiled in your home to cook food. What do you see?

Place some quicklime in a vessel and carefully pour some water on to it. What do you see?

Cover the boiled milk with a plate. After a while, turn it over. What do you see in it?

What do you see is done to the stains which form on the basins or floorin your house?

Take a bottle made out of a metal and stick a ballon (not blown) on its mouth. What state is the ballon in ?Now take a candle and carefully heat the bottom of the bottle. What do you see?

In another vessel take some clear lime water and with a piece of straw blow some air into it. WHat do you see happening?

What do you mean by water balance? In which conditions does negative water balance occur?

Which of the following sentences are statements ? Give reason for your answers Do you home work .

What do you mean by the chain growth polymerisation? Give two examples of monomers which can take part in this type of polymerisation.

What do you mean by colligative properties? Boiling point of water at 750mm is 99.63^@C . How much sucrose is to be added to 500gm of water so that it boils at 100^@C (given k_b = 0.52 )