1
JEE Main 2026 (Online) 21st January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements :

Statement I : The correct order in terms of atomic/ionic radii is Al > Mg > Mg2+ > Al3+.

Statement II : The correct order in terms of the magnitude of electron gain enthalpy is Cl > Br > S > O.

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

A

Statement I is true but Statement II is false

B

Both Statement I and Statement II are true

C

Statement I is false but Statement II is true

D

Both Statement I and Statement II are false

2
JEE Main 2026 (Online) 21st January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following represents the correct trend for the mentioned property?

A. F > P > S > B      - First Ionization Energy

B. Cl > F > S > P      - Electron Affinity

C. K > Al > Mg > B      - Metallic character

D. K2O > Na2O > MgO > Al2O3      - Basic character

Choose the correct answer from the options given below :

A

B and C only

B

A, B and D only

C

A and B only

D

A, B, C and D

3
JEE Main 2025 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The atomic number of the element from the following with lowest 1st ionisation enthalpy is :

A

32

B

35

C

19

D

87

4
JEE Main 2025 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements:

Statement I: H2Se is more acidic than H2Te

Statement II: H2Se has higher bond enthalpy for dissociation than H2Te

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

A

Both Statement I and Statement II are true

B

Statement I is true but Statement II is false

C

Both Statement I and Statement II are false

D

Statement I is false but Statement II is true

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