Uses of Actinides

Q. Which of the following statements are true regarding the nuclear reactor?

1. A nuclear reactor uses control rods, generally made of Cadmium to switch on or switch off the energy generation process.
2. A nuclear reactor uses moderators to slow down the neutrons to continuously generate the energy.
3. A nuclear reactor uses moderators like heavy water to cool down the reactor as a huge amount of heat is generated in a fission reaction
4. All of the above

Q.

Which one of the following statements is not true about nuclear energy generation in a nuclear reactor?

1. Energy is obtained by a process called nuclear fission.

2. The nucleus of Uranium is bombarded with high energy neutrons.

3. A chain reaction is set in the process.

4. In this process a tremendous amount of energy is released at a controlled rate.

Q.

What are the ways to harness nuclear energy?

Q. Why a "Breeder Reactor" is called by such a name?

1. It is a fusion reactor
2. It generates very high amount of energy
3. It generates nuclear fuel which can be used for fission chain reaction
4. It doesn't consume any nuclear fuel

Q. Fuel used in nuclear power plants is:

1. Uranium - 235
2. Plutonium - 235
3. Plutonium - 238
4. Uranium - 238

Q.

Which of the following element is used in the treatment of cancer?

1. Uranium

2. Thorium

3. Cerium

4. Plutonium

Q.

Which of the following element is used in the treatment of cancer?

1. Uranium

2. Thorium

3. Cerium

4. Plutonium

Q.

Which of the following element is used in the treatment of cancer?

1. Uranium

2. Thorium

3. Cerium

4. Plutonium

Q. Write any four applications of ${}^{\prime }{f}^{\prime }$ - block elements.