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

Find the compound which have both polar and non-polar covalent bonds.

A
HCN
B
H$$_2$$O$$_2$$
C
NH$$_4$$Cl
D
CH$$_4$$
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

In acetylene molecule, between the carbon atoms there are

A
three $$\sigma$$-bonds
B
two $$\sigma$$ and one $$\pi$$-bond
C
one $$\sigma$$ and two $$\pi$$-bonds
D
three $$\pi$$-bonds
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

During the formation of a chemical bond

A
energy decreases
B
energy increases
C
energy of the system does not change
D
electron-electron repulsion becomes more than the nucleus-electron attraction
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

For a stable molecule the value of bond order must be

A
negative
B
positive
C
zero
D
there is no relationship between stability and bond order
COMEDK Subjects