JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

1 Medium

1 of 1

Application +4 | -1

The reaction below can be used as a laboratory method for preparing small quantities of

\mathrm{Cl}_2(\mathrm{~g})

. If a

49 \mathrm{~g}

sample that is

96 \% \mathrm{~K}_2 \mathrm{Cr}_2 \mathrm{O}_7

by mass is allowed to react with

325 \mathrm{~mL}

\mathrm{HCl}_{(\mathrm{aq})}

with a density of

1.15 \mathrm{~g} / \mathrm{ml}

and

30.1 \% \mathrm{HCl}

by mass, how many grams of

\mathrm{Cl}_2(\mathrm{~g})

are produced?

\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7+\mathrm{HCl} \rightarrow \mathrm{CrCl}_3+\mathrm{Cl}_2+\mathrm{H}_2 \mathrm{O}+\mathrm{KCl}

(Atomic weights:

\mathrm{K}=39, \mathrm{Cr}=52, \mathrm{Cl}=35.5

)

View answer and explanation

Correct option: C

34.08 \mathrm{~g}

Option C (34.08 g) is correct because it is calculated by determining the limiting reagent and then using stoichiometry to find the mass of chlorine produced.

JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

More Questions from d & f- BLOCK ELEMENTS