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Nuclear power plants in India - Science and Technology 2

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Nuclear power plants in India

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Kudankulam, Tarapur, Rawatbhata, Kaiga

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Chapter 5: Towards Green Energy - Name the following

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SCERT Maharashtra Science and Technology 2 [English] 10 Standard SSC
Chapter 5 Towards Green Energy
Name the following | Q 2

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(a) coal
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Which one of the following is not renewable energy technology?


Fill in the following blank with suitable word: 

 In a nuclear power station, nuclear fission takes place in the .............


 Differentiate between nuclear fission and nuclear fusion. 


Identify the process shown in the figure and name it.


What do you mean by nuclear energy? What is responsible for its release?


Name the following nuclear reaction:

\[\ce {^235_92U +^1_0n-> ^90_38Sr + ^143_54Xe + 3^1_0n + γ}\]


Two statements are given - one labelled Assertion (A) and the other labelled Reason (R).

Assertion (A): In the process of nuclear fission, the amount of nuclear energy generated by the fission of an atom of uranium is so tremendous that it produces 10 million times the energy produced by the combustion of an atom of carbon from coal.
Reason (R): The nucleus of a heavy atom such as uranium, when bombarded with low energy neutrons, splits apart into lighter nuclei. The mass difference between the original nucleus and the product nuclei gets converted to tremendous energy.


An imaginary radioactive element `"_92X^235` decays to form X1; X2; X3; X4; X5 and X6 nuclides, by ejecting two β-particles, followed by α-particles and again two β-particles, followed by α-particle. Represent the various nuclear changes in the form of an equation. State the mass number and atomic number of X6. List the isotopes and isobars in the above nuclear equation.


The isotope of 92U235 decays by alpha emission to an isotope of Thorium (Th). The Thorium isotope decays by beta emission to an isotope of Protactaminum (Pa). Write down the equations to represent these two nuclear changes. 


State, giving reason, whether the following nuclear decay are allowed or not?

\[\ce{_Z^AX ->_Z^{A-1}Y + _-1^0e}\]


What will an alpha particle change into when it absorb two electrons.


A certain nucleus X has a mass number 14 and atomic number 6. The nucleus X changes to `"_7Y^14` after the loss of a particle. Name the particle emitted.


A certain nucleus X has a mass number 15 and atomic number 7. Find the number of neutrons. The nucleus X losses one β-particle and Express the change and write the symbol of the new nucleus.


In nuclear power plants, turbines working on solar panels are used.


What are the places in which atomic power stations located in Tamil Nadu?


Complete the following nuclear changes:

\[\ce {^238_92 P ->\underset{-}-{Q} + ^4_2He->\underset{-}-{R} + ^0_-1e}\]


Copy and complete the nuclear reaction by filling in the blanks.

\[\ce{_92U^235 + _0n^1 -> _56Ba^{\underline{\phantom{....}}} + \underline{\phantom{..}}Kr^92 + 3 _0n^1}\]


Give scientific reasons.

It is absolutely necessary to control the fission reaction in nuclear power plants.


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