Write down the name of natural polymer.

What is teflon? Write down the name of its monomer. Write down its uses.

Write the name of some natural phenomena which occur in a definite time of the year.

Write down the name of the alkali metal compound which- used for extraction of gold.

Write down the name of the alkali metal compound which- used in antiknock additive.

Write down the name of the alkali metal compound which- used in baking powder.

Write down the name of four type of chromosome in the basis of the position of centromere.

Name two gases which react with each other to form a solid. Give th equation and write down the name of the solid formed.

Answer the following questions (Alternatives are to be noted) :Write down the names of two symmetrical distributions.

Give example of some natural polymer.

Write down the name of the ancestors of Equus.