JEE Mains · Chemistry · STD 11 - 2. structure of atom

Match List \(I\) with List \(II\).
List \(-I\)(Element) List \(-II\) (Electronic Configuration)
\(A.\) \(N\) \(I.\) \([\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^5\)
\(B.\) \(S\) \(II.\) \([\mathrm{Ne}] 3 \mathrm{~s}^2 3 \mathrm{p}^4\)
\(C.\) \(Br\) \(III.\) \([\mathrm{He}] 2 \mathrm{~s}^2 2 \mathrm{p}^3\)
\(D.\) \(Kr\) \(IV.\) \([\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^6\)
Choose the correct answer from the options given below:

A \(A-IV, B-III, C-II, D-I\)
B \(A-III, B-II, C-I, D-IV\)
C \(A-I, B-IV, C-III, D-II\)
D \(A-II, B-I, C-IV, D-III\)

Verified Solution

Answer & Solution

Correct Answer

(B) \(A-III, B-II, C-I, D-IV\)

Step-by-step Solution

Detailed explanation

(\(A\)) \({ }_7 \mathrm{~N}:[\mathrm{He}] 2 \mathrm{~s}^2 2 \mathrm{p}^3\) (\(B\)) \({ }_{16} \mathrm{~S}:[\mathrm{Ne}] 2 \mathrm{~s}^2 3 \mathrm{p}^4\) (\(C\)) \({ }_{35} \mathrm{Br}:[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^5\) (\(D\))…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Match List \(I\) with List \(II\).

List \(I\)	List \(II\)
\(A\) van't Hoff factor, \(i\)	\(I\) Cryoscopic constant
\(B\) \(k _{ f }\)	\(II\) Isotonic solutions
\(C\) Solutions with same osmotic pressure	\(III\) \(\frac{Normal\,molar\,mass}{Abnormal\,molar\,mass}\)
\(D\) Azeotropes	\(IV\) Solutions with same composition of vapour above it

Choose the correct answer from the options given below :

JEE Mains 2023 Medium

Match List \(I\) with List \(II\)

\(LIST-I\) \((Substances)\)	\(LIST-II\) \((Element Present)\)
\(A\). Ziegler catalyst	\(I\). Rhodium
\(B\). Blood pigment	\(II\). Cobalt
\(C\) .Wilkinson catalyst	\(III\). Iron
\(D\). Vitamin \(\mathrm{B}_{12}\)	\(IV\). Titanium

Choose the correct answer from the options given below:

JEE Mains 2024 Hard

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List \(-I\)(Element)	List \(-II\) (Electronic Configuration)
\(A.\) \(N\)	\(I.\) \([\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^5\)
\(B.\) \(S\)	\(II.\) \([\mathrm{Ne}] 3 \mathrm{~s}^2 3 \mathrm{p}^4\)
\(C.\) \(Br\)	\(III.\) \([\mathrm{He}] 2 \mathrm{~s}^2 2 \mathrm{p}^3\)
\(D.\) \(Kr\)	\(IV.\) \([\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^6\)