319228
A solution of \({\rm{A}}{{\rm{l}}_{\rm{2}}}{\left( {{\rm{S}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{3}}}\left\{ {{\rm{d = 1}}{\rm{.253gm/ml}}} \right\}\) contains 22% salt by weight. The molarity, normality, and molality of the solution is, respectively
319230
Assertion : When a concentrated solution is diluted by adding more water, the number of moles of solute in the solution remains unchanged. Reason : Number of moles of a solute is equal to the product of molarity and volume of solution in litres.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The moles of solute in a solution remain constant when additional solvent is added, as the increase in volume proportionally decreases the molarity to maintain a consistent product of moles and molarity. So option (2) is correct.
CHXII02:SOLUTIONS
319231
Molarity of \(0.1 \mathrm{~N}\) oxalic acid is
1 \(0.05\,\,{\text{M}}\)
2 \(0.01\,\,{\text{M}}\)
3 \(0.2\,\,{\text{M}}\)
4 \(0.3\,\,{\text{M}}\)
Explanation:
Oxalic acid is a dibasic acid. \(\mathrm{N}=\mathrm{M} \times\) basicity \(\mathrm{M}=\dfrac{\mathrm{N}}{\text { Basicity }}=\dfrac{0.1}{2}=0.05 \mathrm{M}\)
319228
A solution of \({\rm{A}}{{\rm{l}}_{\rm{2}}}{\left( {{\rm{S}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{3}}}\left\{ {{\rm{d = 1}}{\rm{.253gm/ml}}} \right\}\) contains 22% salt by weight. The molarity, normality, and molality of the solution is, respectively
319230
Assertion : When a concentrated solution is diluted by adding more water, the number of moles of solute in the solution remains unchanged. Reason : Number of moles of a solute is equal to the product of molarity and volume of solution in litres.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The moles of solute in a solution remain constant when additional solvent is added, as the increase in volume proportionally decreases the molarity to maintain a consistent product of moles and molarity. So option (2) is correct.
CHXII02:SOLUTIONS
319231
Molarity of \(0.1 \mathrm{~N}\) oxalic acid is
1 \(0.05\,\,{\text{M}}\)
2 \(0.01\,\,{\text{M}}\)
3 \(0.2\,\,{\text{M}}\)
4 \(0.3\,\,{\text{M}}\)
Explanation:
Oxalic acid is a dibasic acid. \(\mathrm{N}=\mathrm{M} \times\) basicity \(\mathrm{M}=\dfrac{\mathrm{N}}{\text { Basicity }}=\dfrac{0.1}{2}=0.05 \mathrm{M}\)
319228
A solution of \({\rm{A}}{{\rm{l}}_{\rm{2}}}{\left( {{\rm{S}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{3}}}\left\{ {{\rm{d = 1}}{\rm{.253gm/ml}}} \right\}\) contains 22% salt by weight. The molarity, normality, and molality of the solution is, respectively
319230
Assertion : When a concentrated solution is diluted by adding more water, the number of moles of solute in the solution remains unchanged. Reason : Number of moles of a solute is equal to the product of molarity and volume of solution in litres.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The moles of solute in a solution remain constant when additional solvent is added, as the increase in volume proportionally decreases the molarity to maintain a consistent product of moles and molarity. So option (2) is correct.
CHXII02:SOLUTIONS
319231
Molarity of \(0.1 \mathrm{~N}\) oxalic acid is
1 \(0.05\,\,{\text{M}}\)
2 \(0.01\,\,{\text{M}}\)
3 \(0.2\,\,{\text{M}}\)
4 \(0.3\,\,{\text{M}}\)
Explanation:
Oxalic acid is a dibasic acid. \(\mathrm{N}=\mathrm{M} \times\) basicity \(\mathrm{M}=\dfrac{\mathrm{N}}{\text { Basicity }}=\dfrac{0.1}{2}=0.05 \mathrm{M}\)
319228
A solution of \({\rm{A}}{{\rm{l}}_{\rm{2}}}{\left( {{\rm{S}}{{\rm{O}}_{\rm{4}}}} \right)_{\rm{3}}}\left\{ {{\rm{d = 1}}{\rm{.253gm/ml}}} \right\}\) contains 22% salt by weight. The molarity, normality, and molality of the solution is, respectively
319230
Assertion : When a concentrated solution is diluted by adding more water, the number of moles of solute in the solution remains unchanged. Reason : Number of moles of a solute is equal to the product of molarity and volume of solution in litres.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The moles of solute in a solution remain constant when additional solvent is added, as the increase in volume proportionally decreases the molarity to maintain a consistent product of moles and molarity. So option (2) is correct.
CHXII02:SOLUTIONS
319231
Molarity of \(0.1 \mathrm{~N}\) oxalic acid is
1 \(0.05\,\,{\text{M}}\)
2 \(0.01\,\,{\text{M}}\)
3 \(0.2\,\,{\text{M}}\)
4 \(0.3\,\,{\text{M}}\)
Explanation:
Oxalic acid is a dibasic acid. \(\mathrm{N}=\mathrm{M} \times\) basicity \(\mathrm{M}=\dfrac{\mathrm{N}}{\text { Basicity }}=\dfrac{0.1}{2}=0.05 \mathrm{M}\)
