Answer :
The international system of units is known as SI and is a metric system. Mostly used as a system of measurement. It is used in science, technology, and nearly in every part of the country. The system includes coherent units known as derived units.
- A mole is not a base unit or any property of the units.
- It can be used for physical and chemical comparison and hence the mole of substance can be performed with the number of particles of the substance.
Hence the option B is correct.
Learn more about the frequently used in chemical calculations.
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