Two elements which are used to absorb neutrons to control the chain reaction during nuclear fission are
1). Boron and Cadmium
2). Boron and Plutonium
3). Cadmium and Uranium
4). Uranium and Boron
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1. Which of the following acts as best adsorbent?
2. Question 14.6:What is smog? How is classical smog different from photochemical smog?
3. Sending a frame to a group of stations is known as __________
4. Atomic number is the number equal to
5. The Bhopal gas tragedy was caused by the gas
6. Which one of the following is most acidic?
7. In galvanization, iron is coated with
8. Ferrous sulphate is used in water treatment as a/an