Answer: Option (a) is correct.
Explanation:
Molecules of sugar given = [tex]1.505 \times 10^{23}[/tex]
According to Avogadro's number it is known that 1 mole contains [tex]6.023 \times 10^{23}[/tex].
Therefore, calculate the moles of sugar present in the sample as follows.
Number of moles = [tex]\frac {1.505 \times 10^{23}}{6.023 \times 10^{23}}[/tex]
= 0.25 mol
Thus, the moles of sugar present in the sample is 0.25 mol.
