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In the following questions 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): Liquids tend to have maximum number of molecules at their surface.
Reason (R): Small liquid drops have spherical shape.
- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true but R is not the correct explanation of A.
- c)A is true but R is false.
- d)A is false but R is true.
Correct answer is option 'D'. Can you explain this answer?
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In the following questions a statement of Assertion (A) followed by a...
Liquid tend to reduce number of molecules or surface tension at there surface, that's why small liquid drops have spherical shape.
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In the following questions a statement of Assertion (A) followed by a...
Assertion (A) Analysis
- The assertion states that "Liquids tend to have maximum number of molecules at their surface."
- This statement is false. In liquids, molecules are closely packed, and the maximum concentration of molecules is found in the bulk of the liquid, not at the surface. Surface molecules experience different forces compared to those in the bulk, leading to a lower density at the surface.
Reason (R) Analysis
- The reason given is "Small liquid drops have spherical shape."
- This statement is true. Small liquid drops form a spherical shape due to surface tension, which minimizes the surface area for a given volume. This is a physical property of liquids that occurs regardless of the number of molecules at the surface.
Conclusion
- Since Assertion (A) is false and Reason (R) is true, the correct answer is option 'D': "A is false but R is true."
- This means that while it is accurate that small drops are spherical due to surface tension, it is incorrect to claim that liquids have a maximum number of molecules at the surface.
Key Takeaways
- Surface molecules are fewer in number compared to those in the bulk of the liquid.
- The spherical shape of liquid drops is a consequence of surface tension, not necessarily related to the number of surface molecules.
- Understanding these concepts is crucial for grasping the behavior of liquids in physical chemistry.
- The assertion states that "Liquids tend to have maximum number of molecules at their surface."
- This statement is false. In liquids, molecules are closely packed, and the maximum concentration of molecules is found in the bulk of the liquid, not at the surface. Surface molecules experience different forces compared to those in the bulk, leading to a lower density at the surface.
Reason (R) Analysis
- The reason given is "Small liquid drops have spherical shape."
- This statement is true. Small liquid drops form a spherical shape due to surface tension, which minimizes the surface area for a given volume. This is a physical property of liquids that occurs regardless of the number of molecules at the surface.
Conclusion
- Since Assertion (A) is false and Reason (R) is true, the correct answer is option 'D': "A is false but R is true."
- This means that while it is accurate that small drops are spherical due to surface tension, it is incorrect to claim that liquids have a maximum number of molecules at the surface.
Key Takeaways
- Surface molecules are fewer in number compared to those in the bulk of the liquid.
- The spherical shape of liquid drops is a consequence of surface tension, not necessarily related to the number of surface molecules.
- Understanding these concepts is crucial for grasping the behavior of liquids in physical chemistry.
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In the following questions 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): Liquids tend to have maximum number of molecules at their surface.Reason (R): Small liquid drops have spherical shape.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'D'. Can you explain this answer?
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In the following questions 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): Liquids tend to have maximum number of molecules at their surface.Reason (R): Small liquid drops have spherical shape.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'D'. Can you explain this answer? for Class 11 2024 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 questions 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): Liquids tend to have maximum number of molecules at their surface.Reason (R): Small liquid drops have spherical shape.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the following questions 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): Liquids tend to have maximum number of molecules at their surface.Reason (R): Small liquid drops have spherical shape.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'D'. Can you explain this answer?.
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