NEET Test Series from KOTA - 10 Papers In MS WORD
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CHXII03:ELECTROCHEMISTRY
330457
Which of the following statement is correct?
1 Conductivity of a solution increases with dilution, whereas molar conductivity decreases with dilution.
2 Conductivity of a solution decreases with dilution, whereas molar conductivity increases with dilution.
3 Both conductivity and molar conductivity increase with dilution.
4 Both conductivity and molar conductivity decrease with dilution.
Explanation:
Conductivity of a solution decreases with dilution due to decrease in number of ions per unit volume, whereas molar conductivity increases with dilution due to decrease in molarity.
CHXII03:ELECTROCHEMISTRY
330458
An increases in equivalent conductivity of strong electrolyte with dilution is mainly due to
1 Increases in both, i.e., number of ions and ionic mobility
2 Increases in number of ions
3 Increase in ionic molility of ions
4 \(100\% \) ionisation of electrolyte at normal dilution
Explanation:
\({{\rm{\Delta }}_{{\rm{eq}}}}. \propto \frac{{\rm{1}}}{{\rm{N}}}{\rm{.}}\) On dilution, normality decreases, number of charge carriers per \({\rm{c}}{{\rm{m}}^{\rm{3}}}\) decreases but the volume increases. Consequently, the ionic mobility increases, which increase equivalent conductance.
CHXII03:ELECTROCHEMISTRY
330459
The conductivity of an electrolytic solution decreases on dilution due to
1 decrease in number of ions per unit volume
2 increase in ionic mobility of ions
3 increase in percentage ionisation
4 increase in number of ions per unit volume
Explanation:
Conductivity always decreases with increase in dilution of both the strong and weak electrolytes. This is due to the fact that the number of ions that carry current in a volume of solution always decreases upon dilution.
MHTCET - 2019-1
CHXII03:ELECTROCHEMISTRY
330460
Assertion : On dilution, the equivalent as well as molar conductivity of solution increases. Reason : With dilution, the number of current carrying particles per \(\mathrm{cm}^{3}\) increases.
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 Both Assertion and Reason are incorrect
Explanation:
On dilution, the interionic attractions decreases, so dissociation increases. Thus, equivalent as well as molar conductivities increases. This is because the total volume of a solution containing \(1 \mathrm{~g}\) equivalent or 1 mole of electrolyte also increases. However, the number of current carrying particles per \(\mathrm{cm}^{3}\) decreases on diluting the solution. Hence, Assertion is correct but Reason is incorrect.
330457
Which of the following statement is correct?
1 Conductivity of a solution increases with dilution, whereas molar conductivity decreases with dilution.
2 Conductivity of a solution decreases with dilution, whereas molar conductivity increases with dilution.
3 Both conductivity and molar conductivity increase with dilution.
4 Both conductivity and molar conductivity decrease with dilution.
Explanation:
Conductivity of a solution decreases with dilution due to decrease in number of ions per unit volume, whereas molar conductivity increases with dilution due to decrease in molarity.
CHXII03:ELECTROCHEMISTRY
330458
An increases in equivalent conductivity of strong electrolyte with dilution is mainly due to
1 Increases in both, i.e., number of ions and ionic mobility
2 Increases in number of ions
3 Increase in ionic molility of ions
4 \(100\% \) ionisation of electrolyte at normal dilution
Explanation:
\({{\rm{\Delta }}_{{\rm{eq}}}}. \propto \frac{{\rm{1}}}{{\rm{N}}}{\rm{.}}\) On dilution, normality decreases, number of charge carriers per \({\rm{c}}{{\rm{m}}^{\rm{3}}}\) decreases but the volume increases. Consequently, the ionic mobility increases, which increase equivalent conductance.
CHXII03:ELECTROCHEMISTRY
330459
The conductivity of an electrolytic solution decreases on dilution due to
1 decrease in number of ions per unit volume
2 increase in ionic mobility of ions
3 increase in percentage ionisation
4 increase in number of ions per unit volume
Explanation:
Conductivity always decreases with increase in dilution of both the strong and weak electrolytes. This is due to the fact that the number of ions that carry current in a volume of solution always decreases upon dilution.
MHTCET - 2019-1
CHXII03:ELECTROCHEMISTRY
330460
Assertion : On dilution, the equivalent as well as molar conductivity of solution increases. Reason : With dilution, the number of current carrying particles per \(\mathrm{cm}^{3}\) increases.
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 Both Assertion and Reason are incorrect
Explanation:
On dilution, the interionic attractions decreases, so dissociation increases. Thus, equivalent as well as molar conductivities increases. This is because the total volume of a solution containing \(1 \mathrm{~g}\) equivalent or 1 mole of electrolyte also increases. However, the number of current carrying particles per \(\mathrm{cm}^{3}\) decreases on diluting the solution. Hence, Assertion is correct but Reason is incorrect.
330457
Which of the following statement is correct?
1 Conductivity of a solution increases with dilution, whereas molar conductivity decreases with dilution.
2 Conductivity of a solution decreases with dilution, whereas molar conductivity increases with dilution.
3 Both conductivity and molar conductivity increase with dilution.
4 Both conductivity and molar conductivity decrease with dilution.
Explanation:
Conductivity of a solution decreases with dilution due to decrease in number of ions per unit volume, whereas molar conductivity increases with dilution due to decrease in molarity.
CHXII03:ELECTROCHEMISTRY
330458
An increases in equivalent conductivity of strong electrolyte with dilution is mainly due to
1 Increases in both, i.e., number of ions and ionic mobility
2 Increases in number of ions
3 Increase in ionic molility of ions
4 \(100\% \) ionisation of electrolyte at normal dilution
Explanation:
\({{\rm{\Delta }}_{{\rm{eq}}}}. \propto \frac{{\rm{1}}}{{\rm{N}}}{\rm{.}}\) On dilution, normality decreases, number of charge carriers per \({\rm{c}}{{\rm{m}}^{\rm{3}}}\) decreases but the volume increases. Consequently, the ionic mobility increases, which increase equivalent conductance.
CHXII03:ELECTROCHEMISTRY
330459
The conductivity of an electrolytic solution decreases on dilution due to
1 decrease in number of ions per unit volume
2 increase in ionic mobility of ions
3 increase in percentage ionisation
4 increase in number of ions per unit volume
Explanation:
Conductivity always decreases with increase in dilution of both the strong and weak electrolytes. This is due to the fact that the number of ions that carry current in a volume of solution always decreases upon dilution.
MHTCET - 2019-1
CHXII03:ELECTROCHEMISTRY
330460
Assertion : On dilution, the equivalent as well as molar conductivity of solution increases. Reason : With dilution, the number of current carrying particles per \(\mathrm{cm}^{3}\) increases.
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 Both Assertion and Reason are incorrect
Explanation:
On dilution, the interionic attractions decreases, so dissociation increases. Thus, equivalent as well as molar conductivities increases. This is because the total volume of a solution containing \(1 \mathrm{~g}\) equivalent or 1 mole of electrolyte also increases. However, the number of current carrying particles per \(\mathrm{cm}^{3}\) decreases on diluting the solution. Hence, Assertion is correct but Reason is incorrect.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
CHXII03:ELECTROCHEMISTRY
330457
Which of the following statement is correct?
1 Conductivity of a solution increases with dilution, whereas molar conductivity decreases with dilution.
2 Conductivity of a solution decreases with dilution, whereas molar conductivity increases with dilution.
3 Both conductivity and molar conductivity increase with dilution.
4 Both conductivity and molar conductivity decrease with dilution.
Explanation:
Conductivity of a solution decreases with dilution due to decrease in number of ions per unit volume, whereas molar conductivity increases with dilution due to decrease in molarity.
CHXII03:ELECTROCHEMISTRY
330458
An increases in equivalent conductivity of strong electrolyte with dilution is mainly due to
1 Increases in both, i.e., number of ions and ionic mobility
2 Increases in number of ions
3 Increase in ionic molility of ions
4 \(100\% \) ionisation of electrolyte at normal dilution
Explanation:
\({{\rm{\Delta }}_{{\rm{eq}}}}. \propto \frac{{\rm{1}}}{{\rm{N}}}{\rm{.}}\) On dilution, normality decreases, number of charge carriers per \({\rm{c}}{{\rm{m}}^{\rm{3}}}\) decreases but the volume increases. Consequently, the ionic mobility increases, which increase equivalent conductance.
CHXII03:ELECTROCHEMISTRY
330459
The conductivity of an electrolytic solution decreases on dilution due to
1 decrease in number of ions per unit volume
2 increase in ionic mobility of ions
3 increase in percentage ionisation
4 increase in number of ions per unit volume
Explanation:
Conductivity always decreases with increase in dilution of both the strong and weak electrolytes. This is due to the fact that the number of ions that carry current in a volume of solution always decreases upon dilution.
MHTCET - 2019-1
CHXII03:ELECTROCHEMISTRY
330460
Assertion : On dilution, the equivalent as well as molar conductivity of solution increases. Reason : With dilution, the number of current carrying particles per \(\mathrm{cm}^{3}\) increases.
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 Both Assertion and Reason are incorrect
Explanation:
On dilution, the interionic attractions decreases, so dissociation increases. Thus, equivalent as well as molar conductivities increases. This is because the total volume of a solution containing \(1 \mathrm{~g}\) equivalent or 1 mole of electrolyte also increases. However, the number of current carrying particles per \(\mathrm{cm}^{3}\) decreases on diluting the solution. Hence, Assertion is correct but Reason is incorrect.