CBSE 12 Political Science Question Paper-2023 Set-2 by Pavan | Practice Test to Test Your Knowledge
Students

Academic Programs

AI-powered learning for grades 8-12, aligned with major curricula

Engineering Courses
Professional

Professional Courses

Industry-relevant training in Business, Technology, and Design

Certifications
Games

Interactive Games

Fun games to boost memory, math, typing, and English skills

  2. Practice Tests
  3. CBSE 12 Political Science Question Paper-2023 Set-2
CBSE 12 Political Science Question Paper-2023 Set-2

CBSE 12 Political Science Question Paper-2023 Set-2

This mock test includes actual CBSE Class 12 Political Science board exam questions from the year 2023 Set-2, helping students understand exam trends and practice real paper format

2025-08-16
Pavan Pavan
CBSE Class 12 Political Science 2023 Grade 12

Duration

45 min

Questions

45

Marking

Negative

You've not yet enrolled in this practice test. Please login to start practice test.

Questions Preview

The van 't Hoff factor 'i' for a compound that completely forms a tetramer in a given organic solvent is:

A
4.0
B
2.0
C
0.125
D
0.25

The half-life for a zero-order reaction is equal to which of the following? Where R is the initial concentration.

A
R/2k
B
2k/R
C
R^2/2k
D
1/2(k/R^2)

The conversion of an alkyl halide into an alkene by alcoholic KOH is classified as:

A
a dehydration reaction
B
a substitution reaction
C
an addition reaction
D
a dehydrohalogenation reaction

The oxidation state of Fe in [Fe(CO)5] is:

A
+5
B
0
C
+3
D
+2

Among the following, which is the strongest base?

A
Benzene ring with an attached -NO2 and -NH2 group
B
Benzene ring with an attached -CH3 and -NH2 group
C
Benzene ring with an attached -CH2-NH2 group
D
Benzene ring with an attached -NH2 group

The slope in the plot of ln[R] vs. time for a first order reaction is:

A
-k
B
-k/2.303
C
+k
D
+k/2.303

An a-helix is a structural feature of:

A
Sucrose
B
Nucleotides
C
Polypeptides
D
Starch

Racemisation occurs in:

A
Neither SN1 nor SN2 reaction
B
SN1 reaction
C
Both SN2 and SN1 reactions
D
SN2 reaction

Value of Henry's constant KH:

A
decreases with increase in temperature
B
increases with increase in temperature
C
remains constant
D
increases with decrease in temperature

Which of the following solutions of KCl will have the highest value of molar conductivity?

A
0.01 M
B
0.5 M
C
1 M
D
0.1 M

Which of the following reactions are feasible?

A
Neither (a) nor (b)
B
(CH3)3C-Cl + Na+O-CH2CH3 -> CH3CH2-O-C(CH3)3
C
Both (a) and (b)
D
CH3CH2Br + Na+O-C(CH3)3 -> CH3CH2-O-C(CH3)3

Which of the following is most reactive in nucleophilic addition reactions?

A
CH3COCH3
B
HCHO
C
CH3COC2H5
D
CH3CHO

Which of the following belongs to the class of Vinyl halides?

A
CH2=CH-CH2-Br
B
CH2=C(Br)CH3
C
CH≑C-Br
D
CH2=CHCH2CH2Cl

What is the secondary valency of Cobalt in [Co(en)2Cl2]+?

A
6
B
4
C
8
D
2

When Benzene diazonium chloride reacts with phenol, it forms a dye. This reaction is called:

A
Diazotisation reaction
B
Coupling reaction
C
Condensation reaction
D
Acetylation reaction

The slope in the plot of [R] vs. time for a zero order reaction is:

A
+k
B
-k
C
+k/2.303
D
-k/2.303

Proteins are polymers of:

A
Nucleic acids
B
Monosaccharides
C
Amino acids
D
Amines

Retention of configuration is observed in:

A
SN2 reaction as well as SN1 reaction
B
SN1 reaction
C
Neither SN1 nor SN2 reaction
D
SN2 reaction

An azeotropic mixture of two liquids will have a boiling point lower than either of the two liquids when it:

A
forms an ideal solution
B
shows a positive deviation from Raoult's law
C
is saturated
D
shows a negative deviation from Raoult's law

Which of the following does not give Cannizaro reaction?

A
Isobutyraldehyde
B
Formaldehyde
C
Benzaldehyde
D
Trimethylacetaldehyde

Aldehydes and ketones react with hydroxylamine to form:

A
Semicarbazone
B
Cyanohydrin
C
Oxime
D
Hydrazone

For the reaction 2A -> 3B, the reaction rate -d[A]/dt is equal to:

A
+1/3 d[B]/dt
B
+2/3 d[B]/dt
C
+3/2 d[B]/dt
D
+1/2 d[B]/dt

Auto oxidation of chloroform in air and sunlight produces a poisonous gas known as:

A
Mustard gas
B
Chlorine gas
C
Phosgene gas
D
Tear gas

Which of the following ligands is an ambidentate ligand?

A
H2O
B
CO
C
NH3
D
NO2

Among the following, which has the highest value of pKb?

A
Benzene ring with an attached -CH2-NH2 group
B
Benzene ring with an attached -CH3 and -NH2 group
C
Benzene ring with an attached -NH2 group
D
Benzene ring with an attached -NO2 and -NH2 group

The slope in the plot of log[R]0/[R] vs. time for a first order reaction is:

A
+k
B
-k/2.303
C
+k/2.303
D
-k

When D-glucose reacts with HI, it forms:

A
Iodohexane
B
Saccharic acid
C
n-hexane
D
Gluconic acid

Inversion of configuration occurs in:

A
SN2 reaction
B
SN1 reaction
C
SN1 as well as SN2 reaction
D
Neither SN2 nor SN1 reaction

Solubility of gas in liquid decreases with increase in:

A
Pressure
B
Volume
C
Number of solute molecules
D
Temperature

Which of the following relations is incorrect?

A
G = k(a/l)
B
R = (1/k)(l/a)
C
Ξ›m = k/c
D
G = k(l/a)

The reagent that can be used to distinguish acetophenone and benzophenone is:

A
Fehling solution
B
aqueous NaHSO3
C
I2 and NaOH
D
2,4-dinitrophenyl hydrazine

Which of the following compounds will undergo self-condensation in the presence of dilute NaOH solution?

A
H-CHO
B
(CH3)3C-CHO
C
C6H5CHO
D
CH3CH2CHO

For the reaction 3A -> 2B, the reaction rate -d[A]/dt is equal to:

A
+1/3 d[B]/dt
B
+2/3 d[B]/dt
C
+3/2 d[B]/dt
D
+1/2 d[B]/dt

A compound forms a complete dimer in a given organic solvent. The van 't Hoff factor 'i' is:

A
0.5
B
2.0
C
0.25
D
1.0

For a reaction A+2B -> C+D, the rate law is given by r=k[A][B]^2. The concentration of A is kept constant and that of B is doubled. The reaction rate will be:

A
doubled
B
quadrupled
C
unchanged
D
halved

The reaction of 1-phenyl-2-chloropropane with alcoholic KOH mainly yields:

A
1-phenylpropan-3-ol
B
3-phenylpropene
C
1-phenylpropene
D
1-phenylpropan-2-ol

The compound CaCl2.6H2O completely dissociates in water. The van 't Hoff factor 'i' is:

A
9
B
3
C
6
D
4

For a zero-order reaction of the type A -> products, the rate equation can be expressed as:

A
k = ([A]0 - [A])/t
B
k = ([A] - [A]0)/t
C
k = ([A]0 - [A])/2t
D
k = ([A]0 - [A])/2

Which of the following Cu2+ halides is not known?

A
CuF2
B
CuCl2
C
CuBr2
D
CuI2

Which of the following is an example of an inorganic benzene?

A
Boric oxide
B
Borazine
C
Diboran
D
Boron nitride

In which of the following compounds does the transition metal have zero oxidation state?

A
K3[Fe(CN)6]
B
[Ni(CO)4]
C
[Fe(H2O)6]Cl2
D
[Cr(NH3)6]Cl3

Which of the following has the minimum boiling point?

A
CH3CH2CH2CH2OH
B
(CH3)3COH
C
CH3CH2CH(CH3)OH
D
(CH3)2CHCH2OH

The reagent used for the conversion of R-COOH to R-CH2OH is:

A
H2/Ni
B
NaBH4
C
LiAlH4
D
Zn-Hg/conc. HCl

Which of the following is most basic?

A
C6H5NH2
B
(C2H5)2NH
C
C2H5NH2
D
NH3

The reagent used for the conversion of R-CONH2 to R-NH2 is:

A
Zn-Hg/conc. HCl
B
LiAlH4
C
Br2/NaOH
D
H2/Pd-BaSO4