1
COMEDK 2025 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0
Given are 4 pairs of covalent molecules. Identify the pair in which both molecules have the same shape.
A
$\mathrm{XeF}_2 ~\&~ \mathrm{HgCl}_2$
B
$\mathrm{BF}_3~ \& ~\mathrm{NH}_3$
C
$\mathrm{XeF} 4 ~\& ~\mathrm{SF}_4$
D
$\mathrm{BrF}_5 ~\& ~\mathrm{PCl}_5$
2
COMEDK 2025 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

From among the 4 given compounds identify the compounds which possess a net dipole moment.

A. cis-1,2-Dichloroethene

B. Tetrachloromethane

C. o-Dichlorobenzene

D. trans 2,3-Dibromobut-2-ene

A
A and D
B
D and B
C
A and C
D
B and C
3
COMEDK 2025 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0
Which one of the following molecules attains greater stability on formation of its diatomic monovalent anion?
A
$\mathrm{C}_2$
B
$\mathrm{O}_2$
C
$\mathrm{N}_2$
D
$\mathrm{F_2}$
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
In which one of the following pairs does the stability of the monovalent ion increase with respect to the molecule, while the magnetic character remains the same for both?
A
$\mathrm{C}_2 / \mathrm{C}_2^{+}$
B
$\mathrm{O}_2 / \mathrm{O}_2{ }^{+}$
C
$\mathrm{B}_2 / \mathrm{B}_2{ }^{+}$
D
$\mathrm{N}_2 / \mathrm{N}_2^{+}$
COMEDK Subjects
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12