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An aqueous solution A turns the phenophlthalein solution pink on addition of an aqueous solution B to A the pink colour disappear which of the following statement is true for the solution A and B
a. A is strongly basic and B is weak base.
b. A is strongly acidic and B is a weak acid.
c. A has a ph greater than 7 and B has ph less than 7.
d. A has a ph less than 7 and B has a greater than 7.?
a. A is strongly basic and B is weak base.
b. A is strongly acidic and B is a weak acid.
c. A has a ph greater than 7 and B has ph less than 7.
d. A has a ph less than 7 and B has a greater than 7.?
Most Upvoted Answer
An aqueous solution A turns the phenophlthalein solution pink on addit...
Understanding the Phenomenon
When an aqueous solution A turns phenolphthalein pink, it indicates that solution A is basic (pH greater than 7). Phenolphthalein is a pH indicator that turns pink in basic conditions and remains colorless in acidic conditions.
Effect of Adding Solution B
The disappearance of the pink color upon adding solution B suggests that solution B neutralizes the basicity of solution A. This implies that solution B is either acidic or has a lower pH than solution A.
Analyzing the Options
Let's examine the given options:
Conclusion
The most accurate statement is that A has a pH greater than 7 while B has a pH less than 7. This explains the observed color change when B is added to A.
When an aqueous solution A turns phenolphthalein pink, it indicates that solution A is basic (pH greater than 7). Phenolphthalein is a pH indicator that turns pink in basic conditions and remains colorless in acidic conditions.
Effect of Adding Solution B
The disappearance of the pink color upon adding solution B suggests that solution B neutralizes the basicity of solution A. This implies that solution B is either acidic or has a lower pH than solution A.
Analyzing the Options
Let's examine the given options:
- A is strongly basic and B is weak base: This cannot be true because a weak base would not neutralize the strong base effectively, leading to the persistence of the pink color.
- A is strongly acidic and B is a weak acid: This is also incorrect because a strongly acidic solution would not turn phenolphthalein pink to begin with.
- A has a pH greater than 7 and B has a pH less than 7: This option is valid. A being basic (pH > 7) and B being acidic (pH < 7)="" can="" lead="" to="" the="" neutralization="" of="" a,="" resulting="" in="" a="" loss="" of="" the="" pink="" />
- A has a pH less than 7 and B has a pH greater than 7: This is not possible since A already turned pink, indicating it is basic.
Conclusion
The most accurate statement is that A has a pH greater than 7 while B has a pH less than 7. This explains the observed color change when B is added to A.
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An aqueous solution A turns the phenophlthalein solution pink on addition of an aqueous solution B to A the pink colour disappear which of the following statement is true for the solution A and Ba. A is strongly basic and B is weak base.b. A is strongly acidic and B is a weak acid.c. A has a ph greater than 7 and B has ph less than 7.d. A has a ph less than 7 and B has a greater than 7.?
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An aqueous solution A turns the phenophlthalein solution pink on addition of an aqueous solution B to A the pink colour disappear which of the following statement is true for the solution A and Ba. A is strongly basic and B is weak base.b. A is strongly acidic and B is a weak acid.c. A has a ph greater than 7 and B has ph less than 7.d. A has a ph less than 7 and B has a greater than 7.? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about An aqueous solution A turns the phenophlthalein solution pink on addition of an aqueous solution B to A the pink colour disappear which of the following statement is true for the solution A and Ba. A is strongly basic and B is weak base.b. A is strongly acidic and B is a weak acid.c. A has a ph greater than 7 and B has ph less than 7.d. A has a ph less than 7 and B has a greater than 7.? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An aqueous solution A turns the phenophlthalein solution pink on addition of an aqueous solution B to A the pink colour disappear which of the following statement is true for the solution A and Ba. A is strongly basic and B is weak base.b. A is strongly acidic and B is a weak acid.c. A has a ph greater than 7 and B has ph less than 7.d. A has a ph less than 7 and B has a greater than 7.?.
An aqueous solution A turns the phenophlthalein solution pink on addition of an aqueous solution B to A the pink colour disappear which of the following statement is true for the solution A and Ba. A is strongly basic and B is weak base.b. A is strongly acidic and B is a weak acid.c. A has a ph greater than 7 and B has ph less than 7.d. A has a ph less than 7 and B has a greater than 7.? for Class 10 2025 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about An aqueous solution A turns the phenophlthalein solution pink on addition of an aqueous solution B to A the pink colour disappear which of the following statement is true for the solution A and Ba. A is strongly basic and B is weak base.b. A is strongly acidic and B is a weak acid.c. A has a ph greater than 7 and B has ph less than 7.d. A has a ph less than 7 and B has a greater than 7.? covers all topics & solutions for Class 10 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An aqueous solution A turns the phenophlthalein solution pink on addition of an aqueous solution B to A the pink colour disappear which of the following statement is true for the solution A and Ba. A is strongly basic and B is weak base.b. A is strongly acidic and B is a weak acid.c. A has a ph greater than 7 and B has ph less than 7.d. A has a ph less than 7 and B has a greater than 7.?.
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