At room temperature, NaCl(s) and KCl(s) were taken in equal masses...

At room temperature,

\mathrm{NaCl}(\mathrm{s})

and

\mathrm{KCl}(\mathrm{s})

were taken in equal masses and dissolved in equal volumes of water in two separate closed containers I and II respectively. Of the following, correct option/s is/are

Options

ATo compare molarities in (I) and (II), masses of both the solutions need to be known
BMolalities cannot be compared without measuring the mass of water added in each case
CIf (I) and (II) are completely transferred into another container (III), $\left[\mathrm{Cl}^{-}\right]$ in (III) will be sum of that in (I) and (II)
DInformation given is sufficient to compare the vapour pressures in (I) and (II)

Correct answer

D. Information given is sufficient to compare the vapour pressures in (I) and (II)

Step-by-step solution

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