1.

1 mole of any substance contains ……………..molecules.

Answer»

`6.023xx10^(23)`
`6.023xx10^(-23)`
`3.0115xx10^(23)`
`12.046xx10^(23)`

SOLUTION :HINT : Avogadro.s law states that 1 mole of any SUBSTANCE contains `6.023xx10^(23)` MOLECULES.


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