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 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0

Match the items in Column I with their description in Column II

S.No. Column I S.No. Column II
A Kappa K P Intensive property.
B $$\mathrm{E_{cell}^0}$$ Q Extensive property.
C Molar conductivity R Decreases with decrease in concentration of both strong and weak electrolytes.
D $$\mathrm{\Delta G_{cell}}$$ S Increases with dilution.

A
$$ \mathrm{A}=\mathrm{R} \quad \mathrm{B}=\mathrm{Q} \quad \mathrm{C}=\mathrm{S} \quad \mathrm{D}=\mathrm{P} $$
B
$$ \mathrm{A}=\mathrm{R} \quad \mathrm{B}=\mathrm{P} \quad \mathrm{C}=\mathrm{S} \quad \mathrm{D}=\mathrm{Q} $$
C
$$ \mathrm{A}=\mathrm{Q} \quad \mathrm{B}=\mathrm{S} \quad \mathrm{C}=\mathrm{P} \quad \mathrm{D}=\mathrm{R} $$
D
$$ \mathrm{A}=\mathrm{S} \quad \mathrm{B}=\mathrm{R} \quad \mathrm{C}=\mathrm{Q} \quad \mathrm{D}=\mathrm{P} $$
2
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0

When Lead Storage battery is in the process of getting charged which one of the following reactions takes place?

A
$$\mathrm{PbO}_{2(s)}$$ is reduced.
B
$$\mathrm{PbSO}_{4(\mathrm{~s})}$$ gets converted to $$\mathrm{Pb}_{(\mathrm{S})}$$ and $$\mathrm{PbO}_{2(\mathrm{~s})}$$
C
$$\mathrm{SO}_3$$ gas gets liberated and $$\mathrm{PbO}_{2(\mathrm{~s})}$$ is formed.
D
$$\mathrm{Pb}_{(\mathrm{S})}$$ gets consumed.
3
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0

The reaction taking place in a galvanic cell is as given

$$\mathrm{A}(\mathrm{s})+\mathrm{B}^{2+}\left(\mathbf{1} \mathbf{1} \mathbf{1 0} \mathbf{0}^{-\mathrm{M}} \mathbf{M}\right) \rightarrow \mathrm{B}_{(\mathrm{s})}+\mathrm{A}^{2+}(0.1 \mathrm{M}).$$

The emf of the cell is $$+2.651 \mathrm{~V}$$. If the standard emf of the cell is $$+2.71 \mathrm{~V}$$, what is the value of $$\mathrm{X}$$ ?

A
X = 6
B
X = 2
C
X = 3
D
X = 4
4
COMEDK 2022
MCQ (Single Correct Answer)
+1
-0

What will be the emf of the following cell at 25$$^\circ$$C?

Fe/Fe$$^{2+}$$ (0.001 M) | | H$$^+$$ (0.01 M) | H$$_2$$(g) (1 Bar) | Pt(s)

$$E_{(F{e^{2+}} /Fe)}^o = - 0.44$$ V; $$E_{({H^ + }/{H_2})}^o = - 0.00$$ V

A
0.44 V
B
$$-$$0.44 V
C
0.41 V
D
$$-$$0.41 V
COMEDK Subjects