Question

Which of the following is an example of nuclear fission?

• A. ${}_1{H}^2{+}_1{H}^2{\to }_{2}H{e}^4+\gamma$
• B. $A+B\to C+energy$
• C. ${}_{92}{U}^{235}{+}_0{n}^1{\to }_{56}B{a}^{141}{+}_{36}K{r}^{92}+3_0{n}^1+energy$
• D. ${}_{13}A{l}^{27}{+}_{2}H{e}^4{\to }_{15}{P}^{30}{+}_0{n}^1$

Answer 1

The correct option is C ${}_{92}{U}^{235}{+}_0{n}^1{\to }_{56}B{a}^{141}{+}_{36}K{r}^{92}+3_0{n}^1+energy$

Nuclear fission is a process in which the nucleus of an atom splits into two or more smaller nuclei as fission products, and usually some by-product particles.

In option $A$, two deuterium are combined to form helium and hence a nuclear fusion.

In options $B$ and $D$ also, nuclear fusion occurs as two nuclei are combining to form other nuclei.

In option $C$, higher nuclei split into smaller nuclei.

Hence, option $C$ is correct.