Question

Define Postulate with example..

Answer 1

postulate definition. A statement accepted as true for the purposes of argument or scientific investigation; also, a basic principle.
Hammond's postulate (or alternatively the Hammond–Leffler postulate), is a hypothesis in physical organic chemistrywhich describes the geometric structure of the transition state in an organic chemical reaction. ... Therefore, the transition state will be more geometrically similar to the reactants than to the products.

Answer 2

A statement accepted as true for the purposes of argument or scientific investigation also a basic principal.

For example- Euclidean geometry is based on five postulates know as Euclid postulates