Match the column-I with column-II and mark the appropriate choice.

Question

Professor PC Thomas Classes · Answer

(c) : (A) $\mathrm{Zn}+2 \mathrm{HCl} ightarrow \mathrm{ZnCl}_{2}+\mathrm{H}_{2}$ 1 mole of Zn produces 2 g of $\mathrm{H}_{2}$\ 5 mole of Zn will produce 1 g of $\mathrm{H}_{2}$.\ (B) Molar mass of $\mathrm{C}_{70} \mathrm{H}_{22}=862 \mathrm{~g} \mathrm{~mol}^{-1}$ \ Mass of atoms $=862 / 6.023 	imes 10^{23}=1.43 	imes 10^{-21} \mathrm{~g}$\ (C) 71 g of $\mathrm{Cl}_{2}=6.023 	imes 10^{23}$ molecules\ 5 g of $\mathrm{Cl}_{2}=3.01 	imes 10^{23}$ molecules\ (D) Molar mass of $\mathrm{SO}_{2}=64=1$ mole \ 64 g of $\mathrm{SO}_{2}=6.023 	imes 10^{23}$ molecules\