Multiple choice general knowledge

What is the unit for AMOUNT OF SUSBSTANCE?

  1. Watt

  2. Kelvin (K)

  3. Candela (cd)

  4. Mole (mol)
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D Correct answer
Explanation

Mole (mol) is the SI base unit for amount of substance. It measures the number of particles (atoms, molecules, ions) in a sample. One mole contains approximately 6.022 × 10^23 particles (Avogadro's number).

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