Question

9.Mention two reasons why do you consider water as a compound.
10. What type of substance shows Ttyndall effect?​

Answer 1

Question

Mention two reasons why do you consider water as a compound.

Answer:

Compounds contain two or more different elements. Water is a molecule because it contains molecular bonds. Water is also a compound because it is made from more than one kind of element (oxygen and hydrogen).

Question

What type of substance shows Ttyndall effect?

Answer

Milk and starch solution show Tyndall effect as they are colloids.

Answer 2

Answer:

9.Compounds contain two or more different elements. Water is a molecule because it contains molecular bonds. Water is also a compound because it is made from more than one kind of element (oxygen and hydrogen).Water have totally different property than its constituents hydrogen and oxygen. 3) Compounds are formed by chemical bonding between the elements while a mixture doesn't involve formation of a chemical bond. Now if you observe, water is formed by chemical bonding i.e. covalent bonding between hydrogen and oxygen.

10. Collides show Ttyndall effect.

eg.-Milk and starch..........