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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
Assertion : Between any two given energy levels, the number of absorption transitions is always less than the number of emission transitions.
Reason : Absorption transitions start from the lowest energy level only and may end at any higher energy level. But emission transitions may start from any higher energy level and end at any energy level below it.
  • a)
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • b)
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • c)
    If the Assertion is correct but Reason is incorrect.
  • d)
    If both the Assertion and Reason are incorrect.
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Directions: These questions consist of two statements, each printed a...
Assertion: Between any two given energy levels, the number of absorption transitions is always less than the number of emission transitions.

Reason: Absorption transitions start from the lowest energy level only and may end at any higher energy level. But emission transitions may start from any higher energy level and end at any energy level below it.

The correct answer is option 'A' - If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Explanation:
To understand the given assertion and reason, let's first define what absorption and emission transitions are.

Absorption Transition: It is a process in which an electron absorbs energy and moves from a lower energy level to a higher energy level.

Emission Transition: It is a process in which an electron releases energy and moves from a higher energy level to a lower energy level.

Understanding the Assertion:
The assertion states that between any two given energy levels, the number of absorption transitions is always less than the number of emission transitions.

Understanding the Reason:
The reason given for the assertion is that absorption transitions start from the lowest energy level only and may end at any higher energy level. On the other hand, emission transitions may start from any higher energy level and end at any energy level below it.

Explanation of Assertion and Reason:
The assertion is correct because absorption transitions occur when an electron absorbs energy and moves to a higher energy level. Since there are a limited number of higher energy levels, the number of absorption transitions will be less than the number of emission transitions.

The reason given is also correct and provides an explanation for the assertion. Absorption transitions can start from the lowest energy level because there is only one lowest energy level. However, emission transitions can start from any higher energy level, which means there are more possible starting points for emission transitions compared to absorption transitions. Additionally, emission transitions can end at any energy level below the initial energy level, further increasing the number of possible emission transitions.

Conclusion:
In conclusion, the assertion and reason are both correct. The reason effectively explains why the number of absorption transitions is always less than the number of emission transitions between any two given energy levels. Therefore, the correct answer is option 'A' - If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
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Read the passage given below and answer the following questions:The d block elements are the 40 elements contained in the four rows of ten columns (3-12) in the periodic table. As all the d block elements are metallic, the term d-block metals is synonymous. This set of d-block elements is also often identified as the transition metals, but sometimes the group 12 elements (zinc, cadmium, mercury) are excluded from the transition metals as the transition elements are defined as those with partly filled d or f shells in their compounds. Inclusion of the elements zinc, cadmium and mercury is necessary as some properties of the group 12 elements are appropriate logically to include with a discussion of transition metal chemistry. The term transition element or transition metal appeared to derive from early studies of periodicity such as the Mendeleev periodic table of the elements. His horizontal table of the elements was an attempt to group the elements together so that the chemistry of elements might be explained and predicted. In this table there are eight groups labeled I-VIII with each subdivided into A and B subgroups. Mendeleev recognized that certain properties of elements in Group VIII are related to those of some of the elements in Group VII and those at the start of the next row Group I. In that sense, these elements might be described as possessing properties transitional from one row of the table to the next.In the following questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices on the basis of the above passage.Assertion (

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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Between any two given energy levels, the number of absorption transitions is always less than the number of emission transitions.Reason : Absorption transitions start from the lowest energy level only and may end at any higher energy level. But emission transitions may start from any higher energy level and end at any energy level below it.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer?
Question Description
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Between any two given energy levels, the number of absorption transitions is always less than the number of emission transitions.Reason : Absorption transitions start from the lowest energy level only and may end at any higher energy level. But emission transitions may start from any higher energy level and end at any energy level below it.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Between any two given energy levels, the number of absorption transitions is always less than the number of emission transitions.Reason : Absorption transitions start from the lowest energy level only and may end at any higher energy level. But emission transitions may start from any higher energy level and end at any energy level below it.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Between any two given energy levels, the number of absorption transitions is always less than the number of emission transitions.Reason : Absorption transitions start from the lowest energy level only and may end at any higher energy level. But emission transitions may start from any higher energy level and end at any energy level below it.a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'A'. Can you explain this answer?.
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