Di and Polybasic Acids and Di and Polyacidic Bases
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CHXI07:EQUILIBRIUM

314540 Assertion :
\(\mathrm{H}_{3} \mathrm{PO}_{4}\) and \(\mathrm{H}_{2} \mathrm{SO}_{4}\) are known as polybasic acids.
Reason :
They have two or more than two protons per molecule of the 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

314541 Assertion :
The second dissociation constant of fumaric acid is greater than maleic acid.
Reason :
Higher the dissociation constant of acid, more is the acidic character.

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

314542 Statement A :
Higher order ionisation constant \({\rm{K}}{{\rm{a}}_{\rm{2}}}\,{\rm{and}}\,{\rm{K}}{{\rm{a}}_{\rm{3}}}\) are smaller than the lower order ionisation constant \({\rm{K}}{{\rm{a}}_{\rm{1}}}\)of a polyprotic acid
Statement B :
It is more difficult to remove a positively charged proton from a negative ion due to Coulombic forces.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
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CHXI07:EQUILIBRIUM

314540 Assertion :
\(\mathrm{H}_{3} \mathrm{PO}_{4}\) and \(\mathrm{H}_{2} \mathrm{SO}_{4}\) are known as polybasic acids.
Reason :
They have two or more than two protons per molecule of the 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

314541 Assertion :
The second dissociation constant of fumaric acid is greater than maleic acid.
Reason :
Higher the dissociation constant of acid, more is the acidic character.

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

314542 Statement A :
Higher order ionisation constant \({\rm{K}}{{\rm{a}}_{\rm{2}}}\,{\rm{and}}\,{\rm{K}}{{\rm{a}}_{\rm{3}}}\) are smaller than the lower order ionisation constant \({\rm{K}}{{\rm{a}}_{\rm{1}}}\)of a polyprotic acid
Statement B :
It is more difficult to remove a positively charged proton from a negative ion due to Coulombic forces.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
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CHXI07:EQUILIBRIUM

314540 Assertion :
\(\mathrm{H}_{3} \mathrm{PO}_{4}\) and \(\mathrm{H}_{2} \mathrm{SO}_{4}\) are known as polybasic acids.
Reason :
They have two or more than two protons per molecule of the 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

314541 Assertion :
The second dissociation constant of fumaric acid is greater than maleic acid.
Reason :
Higher the dissociation constant of acid, more is the acidic character.

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

314542 Statement A :
Higher order ionisation constant \({\rm{K}}{{\rm{a}}_{\rm{2}}}\,{\rm{and}}\,{\rm{K}}{{\rm{a}}_{\rm{3}}}\) are smaller than the lower order ionisation constant \({\rm{K}}{{\rm{a}}_{\rm{1}}}\)of a polyprotic acid
Statement B :
It is more difficult to remove a positively charged proton from a negative ion due to Coulombic forces.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
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