$1000 \mathrm{~g}$ aqueous solution of ${CaCO}_3$ contains $18 \, \mathrm{mg}$ of ${CaCO}_3$ of the solution is

$18 \times 10^3 \, \mathrm{ppm}$

$18 \times 10^{-3} \, \mathrm{ppm}$

$9 \times 10^3 \, \mathrm{ppm}$

NEET UG CHEMISTRY MCQ: HYDROGEN

1 Medium

1 of 1

Application +4 | -1

1000 \mathrm{~g}

aqueous solution of

{CaCO}_3

contains

18 \, \mathrm{mg}

{CaCO}_3

of the solution is

View answer and explanation

Correct option: A

18 \, \mathrm{ppm}

Option A (

18 \, \mathrm{ppm}

) is correct because ppm is calculated as mg of solute per kg of solution.

Practice All Chapter MCQs →

\mathrm{CaC}_2+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{Ca}(\mathrm{OH})_2+' \mathrm{X}\,'

\mathrm{Mg}_2 \mathrm{C}_3+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{Mg}(\mathrm{OH})_2+'\mathrm{Y}\,'

\mathrm{X}

\mathrm{Y}

{H_2}{O_2} \to 2{H^ + } + {O_2} + 2{e^ - };{E^0} = - 0.68V

{\mathrm{H}_\mathrm{2}}{\mathrm{O}_\mathrm{2}}

{\mathrm{H}_2}{\mathrm{O}_2}

{SiH}_4

AlH_3

{NH}_3