How are the oxides classified ? Give two examples of each type.

What are organic compounds and how are they classified ? Give two examples of each type.

What are food additives ? Give two examples of each type of additive and the role played by them.

Name the three classes of levers and state how are they distinguished. Give two examples of each class.

What are the two main types of matter? Give two examples for each type?

What are natural and synthetic polymers ? Give two examples of each type.

What is the difference between a nucleotide and nucleoside ? Give two examples of each with their structure.

Define and classify vitamins. Give at least two examples of each type.

How are oxides classified? Describe each type of oxide with the help of chemical reactions.

What are the two classes of emulsions? Give one example of each class. State the activity to test the type of an emulsion.

What are the essential and non-essential amino acids?Give two examples of each type.