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 2021
MCQ (Single Correct Answer)
+1
-0

An aqueous solution of X on addition of hydrogen peroxide in ice cold conditions gives blue colour to the ethereal layer. Then, X can be

A
acidified potassium chromate
B
alkaline potassium dichromate
C
acidified potassium manganate
D
acidified potassium permanganate
2
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

In 3d-transmission series, which one has the least melting point?

A
V
B
Zn
C
Mn
D
Cu
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

The electronic configuration of Cr$$^{3+}$$ is

A
$$[Ar]3d^54s^1$$
B
$$[Ar]3d^24s^1$$
C
$$[Ar]3d^34s^0$$
D
$$[Ar]3d^44s^2$$
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Formation of coloured solution is possible, when metal ion in the compound contains

A
paired electrons
B
unpaired electrons
C
lone pair of electrons
D
None of the above
COMEDK Subjects