Match List I with List II: — Solution | JEE Mathematics

MCQMediumJEE 2023Composition & Inverse Functions

Match List I with List II:

A matching table with List I containing four reactions A, B, C, D and List II containing reaction types I to IV.

A
A – IV, B – I, C – III, D – II
B
A – I, B – II, C – IV, D – III
C
A – I, B – III, C – II, D – I
D
A – II, B – I, C – IV, D – III

Answer

Correct answer:D

Step-by-step solution

Standard Method

Given: A matching problem between List I and List II.

Find: The correct correspondence among the four entries.

From the provided source, the answer key states (4) A – II, B – I, C – IV, D – III. However, the solution is for a different question involving iterates of a function $f_1(x) = \frac{3x+2}{2x+3}$ and concludes $a+b=3125$ , so it is unrelated to this matching question.

Therefore, the answer is resolved from the answer key.

The correct matching is A – II, B – I, C – IV, D – III. Hence, the correct option is D.

Common mistakes

Matching directly by superficial appearance of the reactions is incorrect because similar-looking aromatic transformations can belong to different named categories. Identify the reaction type from the actual reagent and change involved.
Ignoring the labels in List II and only comparing products is wrong. In matching questions, use both the reagent pattern and the mechanistic class before assigning the Roman numeral.
Marking the mapping correctly but choosing the wrong option number is a common error. After obtaining the full correspondence, compare it carefully with options A to D.

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