Which of the following is a fusion reaction?

Which of the following nuclear fragments corresponding to nuclear fission between a neutron $\left({ }_{0}^{1} n\right)$ and a uranium isotope $\left({ }_{92}^{235} U\right)$ is correct?

The electrostatic energy of a nucleus of charge $Ze$ is equal to $\frac{k Z^2 e^2}{R}$,where $k$ is a constant and $R$ is the nuclear radius. The nucleus divides into two daughter nuclei of charges $\frac{Ze}{2}$ and equal radii. The change in electrostatic energy in the process when they are far apart is

In a nuclear power station,uranium is used for the production of .......

What is nuclear fusion? Explain giving its nuclear equations and write down the definition of thermonuclear fusion.

How much energy is produced from the combustion of $1\, kg$ of coal?