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 2022
MCQ (Single Correct Answer)
+1
-0

The equilibrium constant, $$K_C$$ for $$3C_2H_2(g) \rightleftharpoons C_6H_6(g)$$ is 4 L$$^2$$mol$$^{-2}$$. If the equilibrium concentration of benzene is 0.5 mol$$^{-1}$$ than what is the value of concentration of ethylene?

A
0.05 mol/L
B
0.5 mol/L
C
0.25 mol/L
D
0.025 mol/L
2
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

In the equilibrium, $$AB\rightleftharpoons A+B$$, if the equilibrium concentration of A is double, then equilibrium concentration of B will be

A
half
B
twice
C
$$\frac{1}{4}$$th
D
$$\frac{1}{8}$$th
3
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

For the equilibrium,

2NOCl(g) $$\rightleftharpoons$$ 2NO(g) + Cl$$_2$$(g),

the value of the equilibrium constant, $$K_C$$ is 3.75 $$\times$$ 10$$^{-6}$$ at 1069 K. The value of $$K_p$$ for the reaction at this temperature will be

A
0.133
B
1.242
C
0.033
D
0.00033
4
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

In the chemical reaction,

N$$_2$$ + 3H$$_2$$ $$\rightleftharpoons$$ 2NH$$_3$$ at equilibrium point.

A
equal volumes of N$$_2$$ and H$$_2$$ are reacting.
B
equal means of N$$_2$$ and H$$_2$$ are reacting.
C
the reaction has stopped.
D
the same amount of ammonia is formed, as it is decomposed into N$$_2$$ and H$$_2$$.
COMEDK Subjects