2. The concept of Isomorphism is related to which theory?

an isomorphism is a kind of mapping between objects, which
shows a relationship between two properties or operations.

5. Through amendment the Anti-Defection Act was enacted?

by ammending 101,102,190,191 articles in 52nd
constitutional ammendment,1985 anti-defection act was
enacted. it was in 10th schedule. its not 91st ammendment.

7. In which Article the definition of State was given in our constitution?

Part III of the Constitution, which deals with Fundamental
Rights, begins with the definition of `state', as adumbrated
in Article 12

8. Which was termed as the Magna Carta of India?

The Consumer Protection Act has been defined as the Magna
Carta of India