Acid – Base Titration Using Indicators
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CHXI07:EQUILIBRIUM

314378 100mL of \(\mathrm{HCl}+35 \mathrm{~mL}\) of \(\mathrm{NaOH}\), colour of methyl orange in the solution will be

1 red
2 yellow
3 can't be predicted
4 methyl orange is not suitable indicator
CHXI07:EQUILIBRIUM

314374 Assertion :
The \(\mathrm{pK}_{\mathrm{a}}\) of a weak acid becomes equal to \(\mathrm{pH}\) of the solution at the midpoint of its titration.
Reason :
The molar concentrations of proton acceptor and proton donor become equal at the midpoint of titration of a weak acid.

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.
CHXI07:EQUILIBRIUM

314375 Identify the change in colour when \(\mathrm{NaCl}\) solution is titrated against \(\mathrm{AgNO}_{3}\) solution using fluorescein indicator.

1 Colourless to reddish pink
2 Pale yellow to reddish pink
3 Reddish pink to colourless
4 Colourless to pale yellow
MHTCET - 2021
CHXI07:EQUILIBRIUM

314376 Incorrect statement for the use of indicators in acid base titration is

1 methyl orange may be used for a weak acid vs weak base titration
2 phenolphthalein is a suitable indicator for a weak acid vs strong base titration.
3 methyl orange is a suitable indicator for a strong acid vs weak base titration
4 phenolphthalein may be used for a strong acid vs strong base titration.
JEE - 2023
CHXI07:EQUILIBRIUM

314377 Read the Statement A and Statement B carefully and mark correct option.
Statement A :
Methyl orange is a weak acid.
Statement B :
The benzenoid form of methyl orange is more intense/deeply coloured than the quinonoid form.

1 Both Statement A and Statement B are incorrect.
2 Both Statement A and Statement B are correct.
3 Statement A is incorrect but Statement B is correct.
4 Statement A is correct but Statement B is incorrect.
JEE - 2023
NEET DIGITAL LIBRARY
CHXI07:EQUILIBRIUM

314378 100mL of \(\mathrm{HCl}+35 \mathrm{~mL}\) of \(\mathrm{NaOH}\), colour of methyl orange in the solution will be

1 red
2 yellow
3 can't be predicted
4 methyl orange is not suitable indicator
CHXI07:EQUILIBRIUM

314374 Assertion :
The \(\mathrm{pK}_{\mathrm{a}}\) of a weak acid becomes equal to \(\mathrm{pH}\) of the solution at the midpoint of its titration.
Reason :
The molar concentrations of proton acceptor and proton donor become equal at the midpoint of titration of a weak acid.

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.
CHXI07:EQUILIBRIUM

314375 Identify the change in colour when \(\mathrm{NaCl}\) solution is titrated against \(\mathrm{AgNO}_{3}\) solution using fluorescein indicator.

1 Colourless to reddish pink
2 Pale yellow to reddish pink
3 Reddish pink to colourless
4 Colourless to pale yellow
MHTCET - 2021
CHXI07:EQUILIBRIUM

314376 Incorrect statement for the use of indicators in acid base titration is

1 methyl orange may be used for a weak acid vs weak base titration
2 phenolphthalein is a suitable indicator for a weak acid vs strong base titration.
3 methyl orange is a suitable indicator for a strong acid vs weak base titration
4 phenolphthalein may be used for a strong acid vs strong base titration.
JEE - 2023
CHXI07:EQUILIBRIUM

314377 Read the Statement A and Statement B carefully and mark correct option.
Statement A :
Methyl orange is a weak acid.
Statement B :
The benzenoid form of methyl orange is more intense/deeply coloured than the quinonoid form.

1 Both Statement A and Statement B are incorrect.
2 Both Statement A and Statement B are correct.
3 Statement A is incorrect but Statement B is correct.
4 Statement A is correct but Statement B is incorrect.
JEE - 2023
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CHXI07:EQUILIBRIUM

314378 100mL of \(\mathrm{HCl}+35 \mathrm{~mL}\) of \(\mathrm{NaOH}\), colour of methyl orange in the solution will be

1 red
2 yellow
3 can't be predicted
4 methyl orange is not suitable indicator
CHXI07:EQUILIBRIUM

314374 Assertion :
The \(\mathrm{pK}_{\mathrm{a}}\) of a weak acid becomes equal to \(\mathrm{pH}\) of the solution at the midpoint of its titration.
Reason :
The molar concentrations of proton acceptor and proton donor become equal at the midpoint of titration of a weak acid.

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.
CHXI07:EQUILIBRIUM

314375 Identify the change in colour when \(\mathrm{NaCl}\) solution is titrated against \(\mathrm{AgNO}_{3}\) solution using fluorescein indicator.

1 Colourless to reddish pink
2 Pale yellow to reddish pink
3 Reddish pink to colourless
4 Colourless to pale yellow
MHTCET - 2021
CHXI07:EQUILIBRIUM

314376 Incorrect statement for the use of indicators in acid base titration is

1 methyl orange may be used for a weak acid vs weak base titration
2 phenolphthalein is a suitable indicator for a weak acid vs strong base titration.
3 methyl orange is a suitable indicator for a strong acid vs weak base titration
4 phenolphthalein may be used for a strong acid vs strong base titration.
JEE - 2023
CHXI07:EQUILIBRIUM

314377 Read the Statement A and Statement B carefully and mark correct option.
Statement A :
Methyl orange is a weak acid.
Statement B :
The benzenoid form of methyl orange is more intense/deeply coloured than the quinonoid form.

1 Both Statement A and Statement B are incorrect.
2 Both Statement A and Statement B are correct.
3 Statement A is incorrect but Statement B is correct.
4 Statement A is correct but Statement B is incorrect.
JEE - 2023
For More Updates join with Us
CHXI07:EQUILIBRIUM

314378 100mL of \(\mathrm{HCl}+35 \mathrm{~mL}\) of \(\mathrm{NaOH}\), colour of methyl orange in the solution will be

1 red
2 yellow
3 can't be predicted
4 methyl orange is not suitable indicator
CHXI07:EQUILIBRIUM

314374 Assertion :
The \(\mathrm{pK}_{\mathrm{a}}\) of a weak acid becomes equal to \(\mathrm{pH}\) of the solution at the midpoint of its titration.
Reason :
The molar concentrations of proton acceptor and proton donor become equal at the midpoint of titration of a weak acid.

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.
CHXI07:EQUILIBRIUM

314375 Identify the change in colour when \(\mathrm{NaCl}\) solution is titrated against \(\mathrm{AgNO}_{3}\) solution using fluorescein indicator.

1 Colourless to reddish pink
2 Pale yellow to reddish pink
3 Reddish pink to colourless
4 Colourless to pale yellow
MHTCET - 2021
CHXI07:EQUILIBRIUM

314376 Incorrect statement for the use of indicators in acid base titration is

1 methyl orange may be used for a weak acid vs weak base titration
2 phenolphthalein is a suitable indicator for a weak acid vs strong base titration.
3 methyl orange is a suitable indicator for a strong acid vs weak base titration
4 phenolphthalein may be used for a strong acid vs strong base titration.
JEE - 2023
CHXI07:EQUILIBRIUM

314377 Read the Statement A and Statement B carefully and mark correct option.
Statement A :
Methyl orange is a weak acid.
Statement B :
The benzenoid form of methyl orange is more intense/deeply coloured than the quinonoid form.

1 Both Statement A and Statement B are incorrect.
2 Both Statement A and Statement B are correct.
3 Statement A is incorrect but Statement B is correct.
4 Statement A is correct but Statement B is incorrect.
JEE - 2023
NEET DIGITAL LIBRARY
CHXI07:EQUILIBRIUM

314378 100mL of \(\mathrm{HCl}+35 \mathrm{~mL}\) of \(\mathrm{NaOH}\), colour of methyl orange in the solution will be

1 red
2 yellow
3 can't be predicted
4 methyl orange is not suitable indicator
CHXI07:EQUILIBRIUM

314374 Assertion :
The \(\mathrm{pK}_{\mathrm{a}}\) of a weak acid becomes equal to \(\mathrm{pH}\) of the solution at the midpoint of its titration.
Reason :
The molar concentrations of proton acceptor and proton donor become equal at the midpoint of titration of a weak acid.

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.
CHXI07:EQUILIBRIUM

314375 Identify the change in colour when \(\mathrm{NaCl}\) solution is titrated against \(\mathrm{AgNO}_{3}\) solution using fluorescein indicator.

1 Colourless to reddish pink
2 Pale yellow to reddish pink
3 Reddish pink to colourless
4 Colourless to pale yellow
MHTCET - 2021
CHXI07:EQUILIBRIUM

314376 Incorrect statement for the use of indicators in acid base titration is

1 methyl orange may be used for a weak acid vs weak base titration
2 phenolphthalein is a suitable indicator for a weak acid vs strong base titration.
3 methyl orange is a suitable indicator for a strong acid vs weak base titration
4 phenolphthalein may be used for a strong acid vs strong base titration.
JEE - 2023
CHXI07:EQUILIBRIUM

314377 Read the Statement A and Statement B carefully and mark correct option.
Statement A :
Methyl orange is a weak acid.
Statement B :
The benzenoid form of methyl orange is more intense/deeply coloured than the quinonoid form.

1 Both Statement A and Statement B are incorrect.
2 Both Statement A and Statement B are correct.
3 Statement A is incorrect but Statement B is correct.
4 Statement A is correct but Statement B is incorrect.
JEE - 2023