JEE CHEMISTRY MCQ: SOME BASIC CONCEPTS OF CHEMISTRY

1 Hard

1 of 1

Application +4 | -1

4 \mathrm{~g}

mixture of

\mathrm{Na}_2 \mathrm{O}

and

\mathrm{NaCl}

was dissolved in

400 \mathrm{~mL}

0.3 \mathrm{~M} \mathrm{~HCl}

. After complete reaction, the resulting solution required

200 \mathrm{~mL}

0.2 \mathrm{~M} \mathrm{~NaOH}

for complete neutralization of the excess

\mathrm{HCl}

. What mass

\%

\mathrm{Na}_2 \mathrm{O}

is present in the mixture?

View answer and explanation

Correct option: C

62 \%

Option C (62%) is correct because it is calculated by finding the moles of Na2O that reacted with HCl and then calculating the mass percent.

More Questions from SOME BASIC CONCEPTS OF CHEMISTRY

Practice All Chapter MCQs →

{H_2}O.

mol\,\,k{g^{ - 1}})

2.24 {~L}

{CH}_4

{CO}_2

0.5 \mathrm{M} \mathrm{H}_2 \mathrm{SO}_4

0.5 \mathrm{~g}

\mathrm{Cu}(\mathrm{II})