1
JEE Main 2026 (Online) 4th April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following pictorial diagram most correctly represents the $\pi^*$ ( $\pi$ antibonding) molecular orbital between two atoms if the internuclear axis is taken to be in the $z$-direction $(\xrightarrow{z \text {-axis }})$ ?

A
JEE Main 2026 (Online) 4th April Evening Shift Chemistry - Chemical Bonding & Molecular Structure Question 4 English Option 1
B
JEE Main 2026 (Online) 4th April Evening Shift Chemistry - Chemical Bonding & Molecular Structure Question 4 English Option 2
C
JEE Main 2026 (Online) 4th April Evening Shift Chemistry - Chemical Bonding & Molecular Structure Question 4 English Option 3
D
JEE Main 2026 (Online) 4th April Evening Shift Chemistry - Chemical Bonding & Molecular Structure Question 4 English Option 4
2
JEE Main 2026 (Online) 2nd April Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

SF$_4$ is isostructural with :

A. BrF$_4^\ominus$

B. CH$_4$

C. IF$_4^{\oplus}$

D. XeF$_4$

E. XeO$_2$F$_2$

Choose the correct answer from the options given below :

A

C Only

B

C and E Only

C

A and D Only

D

B and E Only

3
JEE Main 2026 (Online) 2nd April Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements :

Statement (I): The correct sequence of bond lengths in the following species is :

$\ce{O2^{+}} < \ce{O2} < \ce{O2^{-}} < \ce{O2^{2-}}$

Statement (II): The correct sequence of number of unpaired electrons in the following species is :

$\ce{O2} > \ce{O2^{+}} > \ce{O2^{-}} > \ce{O2^{2-}}$

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

Both Statement I and Statement II are false

C

Statement I is true but Statement II is false

D

Statement I is false but Statement II is true

4
JEE Main 2026 (Online) 28th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List - I with List - II according to shape.

List – I List – II
A.  XeO3

B.  XeF2

C.  XeO2F2

D.  XeOF4
I.  BrF5

II.  NH3

III.  [I3]

IV.  SF4

Choose the correct answer from the options given below :

A

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

B

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

C

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

D

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

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