C-06-Q182: Number of H atoms in 2 mole $\mathrm{H_2O}$—

a

2 \times 6.023 \times 10^{23}

b

4 \times 6.023 \times 10^{23}

c

6.023 \times 10^{23}

d

8 \times 6.023 \times 10^{23}

Number of H atoms in 2 mole H2O\mathrm{H_2O}H2​O—