pH of blood remains constant in spite of the variety of goods and spices we eat. Give a reason.

The activation energy of a reaction is zero. Will the rate constant of the reaction depend upon temperature? Give reason.

Aryl diazonium salts are very good synthetic reagents that can be used for the preparation of a wide variety of organic compounds What is coupling reaction? Give one example.

There are different type of forces in nature.We learnt their effects and applications.Give the exact reasons for the following. Why does a satellite revolve around the earth in a circular path?

There are different type of forces in nature.We learnt their effects and applications.Give the exact reason for the following. Why is it easy to lift a heavy stone in water?

There are different type of forces in nature.We learnt their effects and applications.Give the exact reasons for the following. Why can't a horse pull a cart in empty space?

Assertion: Through out electrorefining process, the concentration of electrolyte remains constant. Reason: At a particular instant as much the metal atom from anode gets dissolved into electrolyte, the same number of metal ions get deposited at the cathode.