Is the value of Avogadro constant is 6.022x10 to the power 23

Q.

If the value of Avogadro number is $6.022\times {10}^{23}mo{l}^{-1}$ and the value of Boltzmann constant is $1.380\times {10}^{-23}J{K}^{-1}$, then the number of significant digits in the calculated value of the universal gas constant is ___

Q. Why Avogadro's number is only 6.022*10 to the power of 23

Q. The value of the Avogadro constant is:

Q. The Avogadro number ($N_A$), is changed from $6.022\times {10}^{23}$ $mo{l}^{-1}$ to $6.022\times {10}^{20}$ $mo{l}^{-1}$, this would change:

Q. Statement 1: The value of Avogadro's constant is $6.022\times {10}^{23}$
Statement 2: Mole is the ratio of number of atoms present in the substance to the Avogadro number.
Now choose the correct option :