What is heterospory? Briefly comment on its significance. Give two examples.

What is esterification? Give one example.

Give two examples for alloy

a)Find whether the given vectors 2hati + 3hatj + 4hatk and 4hati + 6hatj + 8hatk are parallel or not. b)What are orthogonal unit vectors? c)What is a zero vector?Give its significance in Physics with an example.

What is pH? What is its significance?

Solids are classified into two types. Give two examples.