MCQ
A solution of two components containing $n_{1}$ moles of the $1^{\text {st }}$ component and $n_{2}$ moles of the $2^{\text {nd }}$ component is prepared. $M _{1}$ and $M _{2}$ are the molecular weights of component $1$ and $2$ respectively. If $d$ is the density of the solution in $g\, mL ^{-1}, C _{2}$ is the molarity and $x _{2}$ is the mole fraction of the $2^{\text {nd }}$ component, then $C_{2}$ can be expressed as
- A$C _{2}=\frac{1000 x _{2}}{ M _{1}+ x _{2}\left( M _{2}- M _{1}\right)}$
- B$C _{2}=\frac{ d x _{2}}{ M _{2}+ x _{2}\left( M _{2}- M _{1}\right)}$
- C$C _{2}=\frac{ d x _{1}}{ M _{2}+ x _{2}\left( M _{2}- M _{1}\right)}$
- ✓$C _{2}=\frac{1000 dx _{2}}{ M _{1}+ x _{2}\left( M _{2}- M _{1}\right)}$