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In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.
Assertion (A) : Aqueous solution of ammonium carbonate is basic.
Reason (R) : Acidic/basic nature of a salt solution of a salt of weak acid and weak base depends on Ka and Kb value of the acid and the base forming it.
- a)Both A and R are true and R is correct explanation of A.
- b)Both A and R are true but R is not correct explanation of A.
- c)A is true but R is false.
- d)Both A and R are false.
Correct answer is option 'A'. Can you explain this answer?
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In the following question, a statement of Assertion (A) followed by a...
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
As, Ka and Kb values are responsible for acidic and basic characters of substances.
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In the following question, a statement of Assertion (A) followed by a...
Aqueous solution of ammonium carbonate is basic.
Explanation:
Ammonium carbonate is an inorganic compound with the formula (NH4)2CO3. When it is dissolved in water, it dissociates into ammonium ions (NH4+) and carbonate ions (CO32-).
The basic nature of an aqueous solution depends on the presence of hydroxide ions (OH-) or the ability to produce OH- ions. In this case, the carbonate ion (CO32-) can react with water to produce hydroxide ions, which makes the solution basic.
Acidic/basic nature of a salt solution of a salt of weak acid and weak base depends on Ka and Kb value of the acid and the base forming it.
The acidic or basic nature of a salt solution depends on the relative strength of the acid and base from which the salt is formed. If the acid is stronger than the base, the resulting salt solution will be acidic. If the base is stronger than the acid, the resulting salt solution will be basic. If the acid and base are of similar strength, the resulting salt solution will be neutral.
The Ka value represents the acid dissociation constant, which is a measure of the strength of an acid. A higher Ka value indicates a stronger acid.
The Kb value represents the base dissociation constant, which is a measure of the strength of a base. A higher Kb value indicates a stronger base.
In the case of ammonium carbonate, ammonium ion (NH4+) is a weak acid and carbonate ion (CO32-) is a weak base. The Ka value of ammonium ion is smaller than the Kb value of the carbonate ion. Therefore, the base (carbonate ion) is stronger than the acid (ammonium ion), and the resulting salt solution (ammonium carbonate) is basic.
Conclusion:
Both the Assertion (A) and Reason (R) are true. The Reason (R) correctly explains the Assertion (A). Therefore, the correct option is (a) Both A and R are true and R is the correct explanation of A.
Explanation:
Ammonium carbonate is an inorganic compound with the formula (NH4)2CO3. When it is dissolved in water, it dissociates into ammonium ions (NH4+) and carbonate ions (CO32-).
The basic nature of an aqueous solution depends on the presence of hydroxide ions (OH-) or the ability to produce OH- ions. In this case, the carbonate ion (CO32-) can react with water to produce hydroxide ions, which makes the solution basic.
Acidic/basic nature of a salt solution of a salt of weak acid and weak base depends on Ka and Kb value of the acid and the base forming it.
The acidic or basic nature of a salt solution depends on the relative strength of the acid and base from which the salt is formed. If the acid is stronger than the base, the resulting salt solution will be acidic. If the base is stronger than the acid, the resulting salt solution will be basic. If the acid and base are of similar strength, the resulting salt solution will be neutral.
The Ka value represents the acid dissociation constant, which is a measure of the strength of an acid. A higher Ka value indicates a stronger acid.
The Kb value represents the base dissociation constant, which is a measure of the strength of a base. A higher Kb value indicates a stronger base.
In the case of ammonium carbonate, ammonium ion (NH4+) is a weak acid and carbonate ion (CO32-) is a weak base. The Ka value of ammonium ion is smaller than the Kb value of the carbonate ion. Therefore, the base (carbonate ion) is stronger than the acid (ammonium ion), and the resulting salt solution (ammonium carbonate) is basic.
Conclusion:
Both the Assertion (A) and Reason (R) are true. The Reason (R) correctly explains the Assertion (A). Therefore, the correct option is (a) Both A and R are true and R is the correct explanation of A.
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In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A) : Aqueous solution of ammonium carbonate is basic.Reason (R) : Acidic/basic nature of a salt solution of a salt of weak acid and weak base depends on Ka and Kb value of the acid and the base forming it.a)Both A and R are true and R is correct explanation of A.b)Both A and R are true but R is not correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'A'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A) : Aqueous solution of ammonium carbonate is basic.Reason (R) : Acidic/basic nature of a salt solution of a salt of weak acid and weak base depends on Ka and Kb value of the acid and the base forming it.a)Both A and R are true and R is correct explanation of A.b)Both A and R are true but R is not correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A) : Aqueous solution of ammonium carbonate is basic.Reason (R) : Acidic/basic nature of a salt solution of a salt of weak acid and weak base depends on Ka and Kb value of the acid and the base forming it.a)Both A and R are true and R is correct explanation of A.b)Both A and R are true but R is not correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'A'. Can you explain this answer?.
In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A) : Aqueous solution of ammonium carbonate is basic.Reason (R) : Acidic/basic nature of a salt solution of a salt of weak acid and weak base depends on Ka and Kb value of the acid and the base forming it.a)Both A and R are true and R is correct explanation of A.b)Both A and R are true but R is not correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'A'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A) : Aqueous solution of ammonium carbonate is basic.Reason (R) : Acidic/basic nature of a salt solution of a salt of weak acid and weak base depends on Ka and Kb value of the acid and the base forming it.a)Both A and R are true and R is correct explanation of A.b)Both A and R are true but R is not correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the following question, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.Assertion (A) : Aqueous solution of ammonium carbonate is basic.Reason (R) : Acidic/basic nature of a salt solution of a salt of weak acid and weak base depends on Ka and Kb value of the acid and the base forming it.a)Both A and R are true and R is correct explanation of A.b)Both A and R are true but R is not correct explanation of A.c)A is true but R is false.d)Both A and R are false.Correct answer is option 'A'. Can you explain this answer?.
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