Question

The reaction ${}_1{}^2\mathrm{H}+{}_1{}^2\mathrm{H}\to {}_2{}^3\mathrm{He}+{}_0{}^1\mathrm{n}$ is called -

• A. fusion
• B. fission
• C. endothermic reaction
• D. spontaneous reaction

Answer 1

The correct option is A

fusion

Step 1:

The reaction is:

${}_1{}^2\mathrm{H}+{}_1{}^2\mathrm{H}\to {}_2{}^3\mathrm{He}+{}_0{}^1\mathrm{n}$

In this reaction, two isotopes of hydrogen atom that is deuterium (${}_1{}^2\mathrm{H}$) fuse together to form a large nucleus that is helium (${}_2{}^3\mathrm{He}$).

Step 2:

Therefore, this reaction follows the nuclear fusion process.

Nuclear fusion is a reaction in which two or more nuclei fuse together to produce different nuclei with different mass numbers and atomic numbers.

Final answer:

Option A is the correct answer.