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1
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
2
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
$\mathrm{F_2}$
3
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
$\mathrm{N}_2 / \mathrm{N}_2^{+}$
4
COMEDK 2025 Morning Shift
MCQ (Single Correct Answer)
+1
-0
Identify the correct statement.
A
The central atoms in both $\mathrm{CH}_4$ and $\mathrm{SF}_4$ are in a state of $\mathrm{sp}^3$ hybridisation
B
The resultant dipole moment of $\mathrm{NF}_3$ is greater than that of $\mathrm{NH}_3$
C
The $\mathrm{C}-\mathrm{O}$ bond length in $\mathrm{CO}_2$ molecule is 110 pm because of the Inductive effect $(+\mathrm{I})$ of oxygen
D
A molecule of the type $\mathrm{AB}_5 \mathrm{E}$ where the central atom has 5 bond pairs and 1 lone pair has a square pyramid geometry
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