Class 10 Exam > Class 10 Questions > Directions: In the following questions, a st...
Start Learning for Free
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion : Soap has good cleansing action.
Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.
- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Directions: In the following questions, a statement of assertion (A) ...
Soap has a long chain of hydrocarbons and a short chain of ionic parts.
View all questions of this test
Most Upvoted Answer
Directions: In the following questions, a statement of assertion (A) ...
Assertion: Soap has good cleansing action.
Reason: Soap has a short chain of hydrocarbons which acts as hydrophobic and a long ionic part which acts as hydrophilic.
To determine whether the given assertion and reason are true or false, we need to analyze each statement separately and then evaluate their relationship.
Explanation:
1. Hydrophobic and Hydrophilic Nature of Soap:
- Soap molecules have two distinct parts: a hydrophobic (water-repelling) tail and a hydrophilic (water-attracting) head.
- The hydrophobic tail of soap is made up of a short chain of hydrocarbons, which are nonpolar and repel water.
- The hydrophilic head of soap contains an ionic group, such as a carboxylate or sulfate group, which is polar and attracts water.
2. Cleansing Action of Soap:
- Soap molecules arrange themselves in such a way that the hydrophobic tails face inward, forming a micelle, while the hydrophilic heads face outward, interacting with water.
- When soap is added to water, the hydrophobic tails of soap molecules cluster together, encapsulating dirt, oil, and other nonpolar substances in the center of the micelle.
- The hydrophilic heads of soap molecules interact with the water molecules, allowing the micelles to be easily rinsed away.
- This process allows soap to effectively remove dirt, oil, and grease from surfaces and skin.
Evaluation:
- The assertion that "Soap has good cleansing action" is true, as explained by the process of micelle formation and the ability of soap to remove nonpolar substances.
- The reason given for the assertion, "Soap has a short chain of hydrocarbons which acts as hydrophobic and a long ionic part which acts as hydrophilic," is also true, as soap molecules do have both hydrophobic and hydrophilic components.
Conclusion:
Based on the evaluation, the correct option is "Assertion (A) is true but reason (R) is false." The reason provided does not correctly explain the assertion, as it only describes the nature of soap molecules rather than the mechanism of their cleansing action.
Reason: Soap has a short chain of hydrocarbons which acts as hydrophobic and a long ionic part which acts as hydrophilic.
To determine whether the given assertion and reason are true or false, we need to analyze each statement separately and then evaluate their relationship.
Explanation:
1. Hydrophobic and Hydrophilic Nature of Soap:
- Soap molecules have two distinct parts: a hydrophobic (water-repelling) tail and a hydrophilic (water-attracting) head.
- The hydrophobic tail of soap is made up of a short chain of hydrocarbons, which are nonpolar and repel water.
- The hydrophilic head of soap contains an ionic group, such as a carboxylate or sulfate group, which is polar and attracts water.
2. Cleansing Action of Soap:
- Soap molecules arrange themselves in such a way that the hydrophobic tails face inward, forming a micelle, while the hydrophilic heads face outward, interacting with water.
- When soap is added to water, the hydrophobic tails of soap molecules cluster together, encapsulating dirt, oil, and other nonpolar substances in the center of the micelle.
- The hydrophilic heads of soap molecules interact with the water molecules, allowing the micelles to be easily rinsed away.
- This process allows soap to effectively remove dirt, oil, and grease from surfaces and skin.
Evaluation:
- The assertion that "Soap has good cleansing action" is true, as explained by the process of micelle formation and the ability of soap to remove nonpolar substances.
- The reason given for the assertion, "Soap has a short chain of hydrocarbons which acts as hydrophobic and a long ionic part which acts as hydrophilic," is also true, as soap molecules do have both hydrophobic and hydrophilic components.
Conclusion:
Based on the evaluation, the correct option is "Assertion (A) is true but reason (R) is false." The reason provided does not correctly explain the assertion, as it only describes the nature of soap molecules rather than the mechanism of their cleansing action.
Attention Class 10 Students!
To make sure you are not studying endlessly, EduRev has designed Class 10 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 10.
|
Explore Courses for Class 10 exam
|
|
Similar Class 10 Doubts
Top Courses for Class 10View all
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer?
Question Description
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer?.
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer?.
Solutions for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : Soap has good cleansing action.Reason : Soap has a short chain of hydrocarbons. Which acts as hydrophobic and long ionic part which acts as hydrophilic.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 10 tests.
|
|
Explore Courses for Class 10 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup