1
JEE Main 2025 (Online) 22nd January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following electronegativity order is incorrect?

A
$\mathrm{S}<\mathrm{Cl}<\mathrm{O}<\mathrm{F}$
B
$\mathrm{Al}<\mathrm{Si}<\mathrm{C}<\mathrm{N}$
C
$\mathrm{Al}<\mathrm{Mg}<\mathrm{B}<\mathrm{N}$
D
$\mathrm{Mg}<\mathrm{Be}<\mathrm{B}<\mathrm{N}$
2
JEE Main 2024 (Online) 9th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I
(Element)
LIST II
(Electronic Configuration)
A. $$\mathrm{N}$$ I. $$[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^5$$
B. $$\mathrm{S}$$ II. $$[\mathrm{Ne}] 3 \mathrm{~s}^2 3 \mathrm{p}^4$$
C. $$\mathrm{Br}$$ III. $$[\mathrm{He}] 2 \mathrm{~s}^2 2 \mathrm{p}^3$$
D. $$\mathrm{Kr}$$ 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-I, B-IV, C-III, D-II
C
A-III, B-II, C-I, D-IV
D
A-II, B-I, C-IV, D-III
3
JEE Main 2024 (Online) 9th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II

LIST I LIST II
A. Melting Point $$[\mathrm{K}]$$ I. $$\mathrm{T} 1>\mathrm{In}>\mathrm{Ga}>\mathrm{A} 1>\mathrm{B}$$
B. Ionic Radius $$[\mathrm{M}^{+3} / \mathrm{pm}]$$ II. $$\mathrm{B}>\mathrm{T} 1>\mathrm{Al} \approx \mathrm{Ga}>\mathrm{In}$$
C. $$\Delta_{\mathrm{i}} \mathrm{H}_1[\mathrm{~kJ} \mathrm{~mol}^{-1}]$$ III. $$\mathrm{T} 1>\mathrm{In}>\mathrm{Al}>\mathrm{Ga}>\mathrm{B}$$
D. Atomic Radius [pm] IV. $$\mathrm{B}>\mathrm{A} 1>\mathrm{T} 1>\mathrm{In}>\mathrm{Ga}$$

Choose the correct answer from the options given below:

A
A-IV, B-I, C-II, D-III
B
A-I, B-II, C-III, D-IV
C
A-III, B-IV, C-I, D-II
D
A-II, B-III, C-IV, D-I
4
JEE Main 2024 (Online) 9th April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements :

Statement (I) : The oxidation state of an element in a particular compound is the charge acquired by its atom on the basis of electron gain enthalpy consideration from other atoms in the molecule.

Statement (II) : $$\mathrm{p} \pi-\mathrm{p} \pi$$ bond formation is more prevalent in second period elements over other periods.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
Statement I is correct but Statement II is incorrect
B
Both Statement I and Statement II are correct
C
Statement I is incorrect but Statement II is correct
D
Both Statement I and Statement II are incorrect
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