Q. Write two similarities between chemistry of lanthanoids and actinoids.

Q. What is the law of limiting factors ? Explain it with an illustration.

Q. Why fluorine is a stronger oxidizing agent than chlorine?

Q. How will you reduce reverberation in public halls or buildings ?

Q. How did the author find Jims letter? What did it contain?

Q. What is the influence of the Himalayas on Indian agriculture?

Q. Define Threshold Energy of a Reaction.

Q. Why does Mrs Pumphrey think the dog’s recovery is “a triumph of surgery”?

Q. How many 3 – digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated?

Q. Who were the members of the JVP committee that was formed to study the demand of linguistic states?