Physical Chemistry
Some Basic Concepts of Chemistry
MCQ (Single Correct Answer)
Chemical Equilibrium
MCQ (Single Correct Answer)
Inorganic Chemistry
Periodic Table and Periodicity
MCQ (Single Correct Answer)
Chemical Bonding and Molecular Structure
MCQ (Single Correct Answer)
Hydrogen and It's Compounds
MCQ (Single Correct Answer)
d and f Block Elements
MCQ (Single Correct Answer)
Coordination Compounds
MCQ (Single Correct Answer)
Environmental Chemistry
MCQ (Single Correct Answer)
Organic Chemistry
IUPAC Nomenclatures
MCQ (Single Correct Answer)
General Organic Chemistry
MCQ (Single Correct Answer)
Haloalkanes and Haloarenes
MCQ (Single Correct Answer)
Alcohol, Phenols and Ethers
MCQ (Single Correct Answer)
Aldehyde and Ketone
MCQ (Single Correct Answer)
Carboxylic Acids and Its Derivatives
MCQ (Single Correct Answer)
Compounds Containing Nitrogen
MCQ (Single Correct Answer)
Chemistry in Everyday Life
MCQ (Single Correct Answer)
Practical Organic Chemistry
MCQ (Single Correct Answer)
1
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the wave number (Units $$\mathrm{cm}^{-1}$$) of the longest wave length transition in the Balmer series of Hydrogen spectrum? $$Z=1 \text { for } H$$

A
27419.6
B
15233
C
39605.6
D
1354
2
COMEDK 2024 Evening Shift
MCQ (Single Correct Answer)
+1
-0
What are the Principal & Azimuthal quantum number values of the valence electrons in tripositive Lutetium?

A
$$ \mathrm{n}=4 \quad \& \quad 1=2 $$
B
$$ \mathrm{n}=5 \quad \& \quad 1=2 $$
C
$$ \mathrm{n}=5 \quad \& \quad 1=3 $$
D
$$ n=4 \quad \& \quad 1=3 $$
3
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

The correct sequence of filling of electrons in $$n=6$$ is:

A
$$ n s \rightarrow(n-1) d \rightarrow(n-2) f \rightarrow n p $$
B
$$ n s \rightarrow n p \rightarrow(n-1) d \rightarrow(n-2) f $$
C
$$ n s \rightarrow(n-2) f \rightarrow n p \rightarrow(n-1) d $$
D
$$ n s \rightarrow(n-2) f \rightarrow(n-1) d \rightarrow n p $$
4
COMEDK 2024 Afternoon Shift
MCQ (Single Correct Answer)
+1
-0

The ratio of the first three radii of Bohr's atom is:

A
$$1: 4: 9$$
B
$$1: 5: 9$$
C
$$1:4:27$$
D
$$1: 2: 3$$
COMEDK Subjects