Match List-I with List-II.
List-I (Conversion)
A. 1 mol of H2O to O2
B. 1 mol of MnO4^- to Mn2+
C. 1.5 mol of Ca from molten CaCl2
D. 1 mol of FeO to Fe2O3
List-II (Number of Faraday required)
I. 3F
II. 2F
III. 1F
IV. 5F
Choose the correct answer from the options given below:
a.
A-II, B-III, C-I, D-IV
b.
A-III, B-IV, C-II, D-I
c.
A-II, B-IV, C-I, D-III
Correct Answer
d.
A-III, B-IV, C-I, D-II
Step-by-Step AI Explanation
Verified Method
H2O → O2 needs 2 electrons per mole of O2; for 1 mol H2O, 1/2 mol O2 is formed, so 1F. MnO4^- to Mn2+ needs 5F per mole. Ca2+ to Ca requires 2F per mole, so 1.5 mol requires 3F. FeO to Fe2O3 corresponds to Fe2+ to Fe3+, so 1F per Fe; for 1 mol FeO, 1F.
Q52mcq
Which reaction is NOT a redox reaction?
a.
H2 + Cl2 → 2 HCl
b.
BaCl2 + Na2SO4 → BaSO4 + 2 NaCl
Correct Answer
c.
Zn + CuSO4 → ZnSO4 + Cu
d.
2 KClO3 + I2 → 2 KIO3 + Cl2
Step-by-Step AI Explanation
Verified Method
In BaCl2 + Na2SO4 → BaSO4 + 2NaCl, oxidation states do not change; it is a double displacement precipitation reaction, not a redox reaction.
Q54mcq
Fehling’s solution ‘A’ is
a.
alkaline solution of sodium potassium tartrate (Rochelle’s salt)
b.
aqueous sodium citrate
c.
aqueous copper sulphate
Correct Answer
d.
alkaline copper sulphate
Step-by-Step AI Explanation
Verified Method
Fehling’s solution A is aqueous copper sulphate; Fehling’s solution B is alkaline sodium potassium tartrate.
Q55mcq
1 gram of sodium hydroxide was treated with 25 mL of 0.75 M HCl solution; the mass of sodium hydroxide left unreacted is equal to
a.
Zero mg
Correct Answer
b.
200 mg
c.
750 mg
d.
250 mg
Step-by-Step AI Explanation
Verified Method
Moles of HCl = 0.025 × 0.75 = 0.01875 mol. This neutralizes the same moles of NaOH, i.e. 0.01875 × 40 = 0.75 g = 750 mg. Since 1 g NaOH was given, unreacted NaOH = 250 mg. The correct option is therefore 250 mg.
Q56mcq
Match List-I with List-II.
List-I (Compound)
A. NH3
B. BrF5
C. XeF4
D. SF6
List-II (Shape/geometry)
I. Trigonal pyramidal
II. Square planar
III. Octahedral
IV. Square pyramidal
Choose the correct answer from the options given below:
a.
A-III, B-IV, C-I, D-II
b.
A-II, B-III, C-IV, D-I
c.
A-I, B-IV, C-II, D-III
Correct Answer
d.
A-II, B-IV, C-III, D-I
Step-by-Step AI Explanation
Verified Method
NH3 is trigonal pyramidal; BrF5 is square pyramidal; XeF4 is square planar; SF6 is octahedral. Hence A-I, B-IV, C-II, D-III.
Q57mcq
The E° value for the Mn3+/Mn2+ couple is more positive than that of Cr3+/Cr2+ or Fe3+/Fe2+ due to change of
a.
d4 to d5 configuration
Correct Answer
b.
d3 to d5 configuration
c.
d5 to d4 configuration
d.
d5 to d2 configuration
Step-by-Step AI Explanation
Verified Method
Mn2+ has a particularly stable half-filled d5 configuration. The reduction Mn3+ → Mn2+ changes the configuration from d4 to d5, making the E° value more positive.
Q57mcq
The E° value for the Mn3+/Mn2+ couple is more positive than that of Cr3+/Cr2+ or Fe3+/Fe2+ due to change of
a.
d4 to d5 configuration
Correct Answer
b.
d3 to d5 configuration
c.
d5 to d4 configuration
d.
d5 to d2 configuration
Step-by-Step AI Explanation
Verified Method
Mn2+ has a particularly stable half-filled d5 configuration. Reduction of Mn3+ to Mn2+ gives d4 to d5, which is highly favorable, making E° more positive.
Q58mcq
Match List-I with List-II.
List-I (Process)
A. Isothermal process
B. Isochoric process
C. Isobaric process
D. Adiabatic process
List-II (Conditions)
I. No heat exchange
II. Carried out at constant temperature
III. Carried out at constant volume
IV. Carried out at constant pressure
Choose the correct answer from the options given below:
a.
A-I, B-II, C-III, D-IV
b.
A-II, B-III, C-IV, D-I
Correct Answer
c.
A-IV, B-III, C-II, D-I
d.
A-IV, B-II, C-III, D-I
Step-by-Step AI Explanation
Verified Method
Isothermal means constant temperature, isochoric means constant volume, isobaric means constant pressure, and adiabatic means no heat exchange.
Q59mcq
Activation energy of any chemical reaction can be calculated if one knows the value of
a.
orientation of reactant molecules during collision.
b.
rate constant at two different temperatures.
Correct Answer
c.
rate constant at standard temperature.
d.
probability of collision.
Step-by-Step AI Explanation
Verified Method
Using the Arrhenius equation, activation energy can be calculated from rate constants at two temperatures.
Q60mcq
A compound with a molecular formula of C6H14 has two tertiary carbons. Its IUPAC name is:
a.
2,3-dimethylbutane
Correct Answer
b.
2,2-dimethylbutane
c.
n-hexane
d.
2-methylpentane
Step-by-Step AI Explanation
Verified Method
2,3-Dimethylbutane has two tertiary carbons (C-2 and C-3), each bonded to three other carbons.
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‘Spin only’ magnetic moment is same for which of the following ions?
A. Ti3+
B. Cr2+
C. Mn2+
D. Fe2+
E. Sc3+
Choose the most appropriate answer from the options given below:
a.
B and C only
b.
A and D only
c.
B and D only
d.
A and E only
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Given below are two statements:
Statement I: Both [Co(NH3)6]3+ and [CoF6]3− complexes are octahedral but differ in their magnetic behaviour.
Statement II: [Co(NH3)6]3+ is diamagnetic whereas [CoF6]3− is paramagnetic.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
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Given below are two statements:
Statement I: The boiling point of hydrides of Group 16 elements follow the order H2O > H2Te > H2Se > H2S.
Statement II: On the basis of molecular mass, H2O is expected to have lower boiling point than the other members of the group but due to the presence of extensive H-bonding in H2O, it has higher boiling point.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
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Match List I with List II.
List I (Quantum Number)
A. ml
B. ms
C. l
D. n
List II (Information provided)
I. shape of orbital
II. size of orbital
III. orientation of orbital
IV. orientation of spin of electron
Choose the correct answer from the options given below:
a.
A-III, B-IV, C-II, D-I
b.
A-II, B-I, C-IV, D-III
c.
A-I, B-III, C-II, D-IV
d.
A-III, B-IV, C-I, D-II
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Match List I with List II.
List I (Reaction)
A.
B.
C.
D.
List II (Reagents/Condition)
I. Anhyd. AlCl3
II. CrO3
III. KMnO4/KOH, Δ
IV. (i) O3
(ii) Zn-H2O
Choose the correct answer from the options given below:
a.
A-IV, B-I, C-II, D-III
b.
A-I, B-IV, C-II, D-III
c.
A-IV, B-I, C-III, D-II
d.
A-III, B-I, C-II, D-IV
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Match List I with List II.
List I (Reaction)
A.
B.
C.
D.
List II (Reagents/Condition)
I. Anhyd. AlCl3
II. CrO3
III. KMnO4/KOH, Δ
IV. (i) O3
(ii) Zn-H2O
Choose the correct answer from the options given below:
a.
A-IV, B-I, C-II, D-III
b.
A-I, B-IV, C-II, D-III
c.
A-IV, B-I, C-III, D-II
d.
A-III, B-I, C-II, D-IV
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The reagents with which glucose does not react to give the corresponding tests/products are:
A. Tollen’s reagent
B. Schiff’s reagent
C. HCN
D. NH2OH
E. NaHSO3
Choose the correct options from the given below:
a.
B and E
b.
E and D
c.
B and C
d.
A and D
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The reagents with which glucose does not react to give the corresponding tests/products are
A. Tollen’s reagent
B. Schiff’s reagent
C. HCN
D. NH2OH
E. NaHSO3
Choose the correct options from the given below:
a.
B and E
b.
E and D
c.
B and C
d.
A and D
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Match List I with List II.
List I (Molecule)
A. ethane
B. ethene
C. carbon molecule, C2
D. ethyne
List II (Number and types of bond/s between two carbon atoms)
I. one σ-bond and two π-bonds
II. two π-bonds
III. one σ-bond
IV. one σ-bond and one π-bond
Choose the correct answer from the options given below:
a.
A-III, B-IV, C-II, D-I
b.
A-III, B-IV, C-I, D-II
c.
A-I, B-IV, C-II, D-III
d.
A-IV, B-III, C-II, D-I
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For the reaction 2A ⇌ B + C, Kc = 4 × 10^-3. At a given time, the composition of reaction mixture is: [A] = [B] = [C] = 2 × 10^-3 M. Then, which of the following is correct?
a.
Reaction has a tendency to go in backward direction.
b.
Reaction has gone to completion in forward direction.
c.
Reaction is at equilibrium.
d.
Reaction has a tendency to go in forward direction.
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Given below are two statements:
Statement I: The boiling point of three isomeric pentanes follows the order: n-pentane > isopentane > neopentane
Statement II: When branching increases, the molecule attains a shape of sphere. This results in smaller surface area for contact, due to which the intermolecular forces between the spherical molecules are weak, thereby lowering the boiling point.
In the light of the above statements, choose the most appropriate answer from the options given below:
a.
Statement I is correct but Statement II is incorrect.
b.
Statement I is incorrect but Statement II is correct.
c.
Both Statement I and Statement II are correct.
d.
Both Statement I and Statement II are incorrect.
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In which of the following processes entropy increases?
A. A liquid evaporates to vapour.
B. Temperature of a crystalline solid lowered from 130 K to 0 K.
C. 2NaHCO3(s) → Na2CO3(s) + CO2(g) + H2O(g)
D. Cl2(g) → 2Cl(g)
Choose the correct answer from the options given below:
a.
A, C and D
b.
C and D
c.
A and C
d.
A, B and D
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On heating, some solid substances change from solid to vapour state without passing through the liquid state. The technique used for the purification of such solid substances based on the above principle is known as:
a.
Distillation
b.
Chromatography
c.
Crystallization
d.
Sublimation
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On heating some solid substance change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as:
a.
Distillation
b.
Chromatography
c.
Crystallization
d.
Sublimation
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Match List-I with List-II.
List-I (Complex)
A. [Co(NH3)5(NO2)]Cl2
B. [Co(NH3)5(SO4)]Br
C. [Co(NH3)6][Cr(CN)6]
D. [Co(H2O)6]Cl3
List-II (Type of isomerism)
I. Solvate isomerism
II. Linkage isomerism
III. Ionization isomerism
IV. Coordination isomerism
Choose the correct answer from the options given below:
a.
A-I, B-IV, C-III, D-II
b.
A-II, B-IV, C-III, D-I
c.
A-II, B-III, C-IV, D-I
d.
A-I, B-III, C-IV, D-II
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Match List-I with List-II.
List-I (Complex)
A. [Co(NH3)5(NO2)]Cl2
B. [Co(NH3)5(SO4)]Br
C. [Co(NH3)6][Cr(CN)6]
D. [Co(H2O)6]Cl3
List-II (Type of isomerism)
I. Solvate isomerism
II. Linkage isomerism
III. Ionization isomerism
IV. Coordination isomerism
Choose the correct answer from the options given below:
a.
A-I, B-IV, C-III, D-II
b.
A-II, B-IV, C-III, D-I
c.
A-II, B-III, C-IV, D-I
d.
A-I, B-III, C-IV, D-II
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Given below are two statements:
Statement I: Aniline does not undergo Friedel-Crafts alkylation reaction.
Statement II: Aniline cannot be prepared through Gabriel synthesis.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is correct but Statement II is false.
b.
Statement I is incorrect but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
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Given below are two statements:
Statement I: Aniline does not undergo Friedel-Crafts alkylation reaction.
Statement II: Aniline cannot be prepared through Gabriel synthesis.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is correct but Statement II is false.
b.
Statement I is incorrect but Statement II is correct.
c.
Both Statement I and Statement II are correct.
d.
Both Statement I and Statement II are incorrect.
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The Henry’s law constant (K_H) values of three gases A, B and C in water are 145, 2 × 10^-5 and 35 kbar, respectively. The solubility of these gases in water follow the order:
a.
A > C > B
b.
A > B > C
c.
B > A > C
d.
B > C > A
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A compound X contains 32% of A, 20% of B and the remaining percentage of C. Then, the empirical formula of X is: (Given atomic masses of A = 64; B = 40; C = 32 u)
a.
AB2C2
b.
ABC4
c.
A2BC2
d.
ABC3
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The plot of osmotic pressure (Π) vs concentration (mol L^-1) for a solution gives a straight line with slope 25.73 L bar mol^-1. The temperature at which the osmotic pressure measurement is done is: (Use R = 0.083 L bar mol^-1 K^-1)
a.
25.73°C
b.
12.05°C
c.
37°C
d.
310°C
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Given below are two statements:
Statement I: [Co(NH3)6]3+ is a homoleptic complex whereas [Co(NH3)4Cl2]+ is a heteroleptic complex.
Statement II: [Co(NH3)6]3+ has only one kind of ligands but [Co(NH3)4Cl2]+ has more than one kind of ligands.
In the light of the above statements, choose the correct answer from the options given below:
a.
Statement I is true but Statement II is false.
b.
Statement I is false but Statement II is true.
c.
Both Statement I and Statement II are true.
d.
Both Statement I and Statement II are false.
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Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI.
A. Al3+
B. Cu2+
C. Ba2+
D. Co2+
E. Mg2+
Choose the correct answer from the option given below:
a.
E, C, D, B, A
b.
E, A, B, C, D
c.
B, A, D, C, E
d.
B, C, A, D, E
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Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI.
A. Al3+
B. Cu2+
C. Ba2+
D. Co2+
E. Mg2+
Choose the correct answer from the option given below:
a.
E, C, D, B, A
b.
E, A, B, C, D
c.
B, A, D, C, E
d.
B, C, A, D, E
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Identify the major product C formed in the following reaction sequence:
CH3CH2CH2I --(NaCN)--> A --(Partial hydrolysis / Br2, NaOH)--> B --> C
Choose the correct option:
a.
butanamide
b.
α-bromobutanoic acid
c.
propylamine
d.
butylamine
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Identify the major product C formed in the following reaction sequence:
CH3CH2CH2I ──NaCN──> A ──(partial hydrolysis, OH−/NaOH, Br2)──> B ──> C (major)
a.
butanamide
b.
α-bromobutanoic acid
c.
propylamine
d.
butylamine
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The rate of a reaction quadruples when temperature changes from 27°C to 57°C. Calculate the energy of activation.
Given R = 8.314 J K−1 mol−1, log 4 = 0.6021
a.
3.80 kJ/mol
b.
3804 kJ/mol
c.
38.04 kJ/mol
d.
380.4 kJ/mol
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The rate of a reaction quadruples when temperature changes from 27°C to 57°C. Calculate the energy of activation. Given R = 8.314 J K^-1 mol^-1, log 4 = 0.6021
a.
3.80 kJ/mol
b.
3804 kJ/mol
c.
38.04 kJ/mol
d.
380.4 kJ/mol
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Consider the following reaction in a sealed vessel at equilibrium with concentrations of N2 = 3.0 × 10−3 M, O2 = 4.2 × 10−3 M and NO = 2.8 × 10−3 M.
2NO(g) ⇌ N2(g) + O2(g)
If 0.1 mol L−1 of NO(g) is taken in a closed vessel, what will be degree of dissociation (α) of NO(g) at equilibrium?
a.
0.8889
b.
0.717
c.
0.00889
d.
0.0889
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The work done during reversible isothermal expansion of one mole of hydrogen gas at 25°C from pressure of 20 atmosphere to 10 atmosphere is: (Given R = 2.0 cal K−1 mol−1)
a.
413.14 calories
b.
100 calories
c.
0 calorie
d.
−413.14 calories
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Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate solution for 100 seconds is: (Given: Molar mass of Cu : 63 g mol−1, 1F = 96487 C)
a.
31.5 g
b.
0.0315 g
c.
3.15 g
d.
0.315 g
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