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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.
Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.
- 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?
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Directions: In the following questions, a statement of assertion (A) i...
In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH. The difference between the molecular masses of the two consecutive members of a homologous series is 14 because a -CH2 group has a molecular mass of 14 amu.
Hence, the correct answer is the assertion is true and Reason is false.
Hence, the correct answer is the assertion is true and Reason is false.
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Directions: In the following questions, a statement of assertion (A) i...
Homologous series of alcohols and their formula
Assertion (A) states that in a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.
Reason (R) states that the difference between the molecular masses of the two consecutive members of a homologous series is 14u.
Explanation
- A homologous series is a series of organic compounds having the same functional group but with different carbon chain lengths. Each member of the series differs from the previous member by a -CH2- unit.
- The general formula for a homologous series of alcohols is CnH2n+1OH, where n is the number of carbon atoms in the carbon chain.
- Therefore, the formula for the first member of the series is CH3OH (methanol), the second member is C2H5OH (ethanol), and the third member is C3H7OH (propanol).
- The reason for this is that each member of the series has an additional -CH2- unit compared to the previous member.
- The molecular mass of a compound is the sum of the atomic masses of all the atoms in the molecule. Therefore, the difference between the molecular masses of two consecutive members of a homologous series is equal to the molecular mass of an additional -CH2- unit, which is 14u.
- Hence, Reason (R) is true, but it does not explain why the formula for the second member is C2H5OH and the third member is C3H7OH. Therefore, option (C) is the correct answer.
Conclusion
In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH. The reason why the difference between the molecular masses of the two consecutive members of a homologous series is 14u. Hence, option (C) is the correct answer.
Assertion (A) states that in a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.
Reason (R) states that the difference between the molecular masses of the two consecutive members of a homologous series is 14u.
Explanation
- A homologous series is a series of organic compounds having the same functional group but with different carbon chain lengths. Each member of the series differs from the previous member by a -CH2- unit.
- The general formula for a homologous series of alcohols is CnH2n+1OH, where n is the number of carbon atoms in the carbon chain.
- Therefore, the formula for the first member of the series is CH3OH (methanol), the second member is C2H5OH (ethanol), and the third member is C3H7OH (propanol).
- The reason for this is that each member of the series has an additional -CH2- unit compared to the previous member.
- The molecular mass of a compound is the sum of the atomic masses of all the atoms in the molecule. Therefore, the difference between the molecular masses of two consecutive members of a homologous series is equal to the molecular mass of an additional -CH2- unit, which is 14u.
- Hence, Reason (R) is true, but it does not explain why the formula for the second member is C2H5OH and the third member is C3H7OH. Therefore, option (C) is the correct answer.
Conclusion
In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH. The reason why the difference between the molecular masses of the two consecutive members of a homologous series is 14u. Hence, option (C) is the correct answer.
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Directions: In the following questions, a statement of assertion (A) i...
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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?
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Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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.
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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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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 (A): In a homologous series of alcohols, the formula for the second member is C2H5OH and the third member is C3H7OH.Reason (R): The difference between the molecular masses of the two consecutive members of a homologous series is 144u.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.
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