Question

.SI unit of amount of substance is *

1 point

a.kg

b.mole

c.litre

d.metre

​

Answer 1

Answer:

b. mole is the answer.......

Answer 2

The mole, symbol mol, is the SI unit of amount of substance. One mole contains exactly 6.022 140 76 x 1023 elementary entities. This number is the fixed numerical value of the Avogadro constant, NA, when expressed in the unit mol–1 and is called the Avogadro number.