Q. Which of the following compounds is a primary haloalkane?
-
A.
CH3CH2CH2Cl
-
B.
CH3Cl
-
C.
C2H5CCl3
-
D.
C6H5Cl
Solution
CH3CH2CH2Cl is a primary haloalkane as the carbon attached to the halogen is bonded to only one other carbon.
Correct Answer:
A
— CH3CH2CH2Cl
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Q. Which of the following compounds is a product of the reaction between an aldehyde and a Grignard reagent?
-
A.
Alcohol
-
B.
Ketone
-
C.
Carboxylic acid
-
D.
Ester
Solution
The reaction of an aldehyde with a Grignard reagent produces a primary alcohol.
Correct Answer:
A
— Alcohol
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Q. Which of the following compounds is a strong acid that contains hydrogen? (2022)
-
A.
HCl
-
B.
NaOH
-
C.
NH3
-
D.
H2O
Solution
Hydrochloric acid (HCl) is a strong acid that contains hydrogen.
Correct Answer:
A
— HCl
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Q. Which of the following compounds is a tertiary amine? (2022)
-
A.
Methylamine
-
B.
Ethylamine
-
C.
Trimethylamine
-
D.
Aniline
Solution
Trimethylamine is a tertiary amine as it has three alkyl groups attached to the nitrogen atom.
Correct Answer:
C
— Trimethylamine
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Q. Which of the following compounds is a typical example of a complex ion? (2022)
-
A.
NaCl
-
B.
CuSO4
-
C.
Ag(NH3)2+
-
D.
Fe2O3
Solution
Ag(NH3)2+ is a complex ion formed by silver and ammonia.
Correct Answer:
C
— Ag(NH3)2+
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Q. Which of the following compounds is a typical example of a transition metal complex? (2022)
-
A.
NaCl
-
B.
CuSO4
-
C.
Fe(CN)6^4-
-
D.
MgO
Solution
Fe(CN)6^4- is a typical example of a transition metal complex.
Correct Answer:
C
— Fe(CN)6^4-
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Q. Which of the following compounds is an amphoteric oxide? (2022)
-
A.
Na2O
-
B.
MgO
-
C.
Al2O3
-
D.
SiO2
Solution
Aluminum oxide (Al2O3) is an amphoteric oxide, meaning it can react with both acids and bases.
Correct Answer:
C
— Al2O3
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Q. Which of the following compounds is an aromatic amine? (2019)
-
A.
Ethylamine
-
B.
Aniline
-
C.
Cyclohexylamine
-
D.
Propylamine
Solution
Aniline is an aromatic amine as it contains a benzene ring attached to the amine group.
Correct Answer:
B
— Aniline
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Q. Which of the following compounds is an aryl halide? (2019)
-
A.
Chloroethane
-
B.
Bromobenzene
-
C.
Iodobutane
-
D.
Chloropropane
Solution
Bromobenzene is an aryl halide as it contains a halogen atom bonded to an aromatic ring.
Correct Answer:
B
— Bromobenzene
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Q. Which of the following compounds is an example of a base? (2019)
-
A.
HCl
-
B.
NaOH
-
C.
H2SO4
-
D.
NH4Cl
Solution
Sodium hydroxide (NaOH) is a strong base.
Correct Answer:
B
— NaOH
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Q. Which of the following compounds is an example of a coordination complex? (2022)
-
A.
NaCl
-
B.
CuSO4
-
C.
[Cu(NH3)4]SO4
-
D.
Fe2O3
Solution
[Cu(NH3)4]SO4 is a coordination complex where copper is coordinated to ammonia ligands.
Correct Answer:
C
— [Cu(NH3)4]SO4
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Q. Which of the following compounds is an example of a covalent compound formed by a p-block element? (2022)
-
A.
NaCl
-
B.
MgO
-
C.
SiCl4
-
D.
CaF2
Solution
SiCl4 is a covalent compound formed by silicon, a p-block element.
Correct Answer:
C
— SiCl4
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Q. Which of the following compounds is an example of a covalent compound? (2019)
-
A.
NaCl
-
B.
MgO
-
C.
SiO2
-
D.
CaF2
Solution
SiO2 (silicon dioxide) is a covalent compound formed by the sharing of electrons between silicon and oxygen.
Correct Answer:
C
— SiO2
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Q. Which of the following compounds is an example of a haloarene? (2019)
-
A.
Chloroethane
-
B.
Bromobenzene
-
C.
Iodobutane
-
D.
Chloropropane
Solution
Bromobenzene is a haloarene as it contains a halogen atom directly attached to an aromatic ring.
Correct Answer:
B
— Bromobenzene
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Q. Which of the following compounds is an example of a p-block element compound? (2020)
-
A.
NaCl
-
B.
MgO
-
C.
AlCl3
-
D.
CaF2
Solution
AlCl3 is a compound formed from a p-block element (Aluminum) and is a classic example of p-block chemistry.
Correct Answer:
C
— AlCl3
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Q. Which of the following compounds is an example of an aromatic hydrocarbon? (2023)
-
A.
Cyclohexane
-
B.
Benzene
-
C.
Ethylene
-
D.
Propane
Solution
Benzene is an aromatic hydrocarbon characterized by its stable ring structure and delocalized electrons.
Correct Answer:
B
— Benzene
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Q. Which of the following compounds is an isomer of butane? (2021)
-
A.
2-methylpropane
-
B.
Pentane
-
C.
Propane
-
D.
Ethane
Solution
2-methylpropane is an isomer of butane, having the same molecular formula but a different structure.
Correct Answer:
A
— 2-methylpropane
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Q. Which of the following compounds is an isomer of butanol?
-
A.
2-Butanol
-
B.
1-Butanol
-
C.
Butyric acid
-
D.
Butene
Solution
2-Butanol is an isomer of butanol, differing in the position of the hydroxyl group.
Correct Answer:
A
— 2-Butanol
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Q. Which of the following compounds is an unsaturated hydrocarbon? (2023)
-
A.
C2H6
-
B.
C3H8
-
C.
C2H4
-
D.
C4H10
Solution
C2H4 (ethylene) is an unsaturated hydrocarbon as it contains a double bond.
Correct Answer:
C
— C2H4
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Q. Which of the following compounds is covalent? (2019)
-
A.
NaCl
-
B.
MgO
-
C.
H2O
-
D.
CaO
Solution
H2O is a covalent compound formed by the sharing of electrons between hydrogen and oxygen atoms.
Correct Answer:
C
— H2O
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Q. Which of the following compounds is formed when magnesium reacts with oxygen? (2019)
-
A.
MgO
-
B.
MgO2
-
C.
Mg2O3
-
D.
Mg3O4
Solution
Magnesium reacts with oxygen to form magnesium oxide (MgO).
Correct Answer:
A
— MgO
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Q. Which of the following compounds is formed when magnesium reacts with water? (2022)
-
A.
MgO
-
B.
Mg(OH)2
-
C.
MgCl2
-
D.
MgSO4
Solution
When magnesium reacts with water, it forms magnesium hydroxide, Mg(OH)2.
Correct Answer:
B
— Mg(OH)2
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Q. Which of the following compounds is known for its antibacterial properties? (2023)
-
A.
Chlorhexidine
-
B.
Sodium chloride
-
C.
Glucose
-
D.
Fructose
Solution
Chlorhexidine is an antiseptic that is effective against a wide range of bacteria and is commonly used in medical settings.
Correct Answer:
A
— Chlorhexidine
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Q. Which of the following compounds is least reactive in nucleophilic substitution reactions? (2023)
-
A.
1-bromopropane
-
B.
2-bromopropane
-
C.
3-bromopropane
-
D.
Benzyl bromide
Solution
Benzyl bromide is less reactive in nucleophilic substitution due to the resonance stabilization of the benzyl cation formed during the reaction.
Correct Answer:
D
— Benzyl bromide
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Q. Which of the following compounds is least soluble in water? (2022)
-
A.
Chloroethane
-
B.
Bromobenzene
-
C.
Iodopropane
-
D.
Chlorobenzene
Solution
Bromobenzene is least soluble in water due to its non-polar nature and the presence of the aromatic ring.
Correct Answer:
B
— Bromobenzene
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Q. Which of the following compounds is not an alcohol? (2023)
-
A.
Ethanol
-
B.
Methanol
-
C.
Phenol
-
D.
Isopropanol
Solution
Phenol is not classified as an alcohol because it has an aromatic ring, while the others are aliphatic alcohols.
Correct Answer:
C
— Phenol
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Q. Which of the following compounds is not an alcohol? (2023) 2023
-
A.
Ethanol
-
B.
Methanol
-
C.
Phenol
-
D.
Isopropanol
Solution
Phenol is not classified as an alcohol because it has an aromatic ring, while the others are aliphatic alcohols.
Correct Answer:
C
— Phenol
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Q. Which of the following compounds is responsible for ozone depletion? (2019)
-
A.
Methane
-
B.
Chlorofluorocarbons (CFCs)
-
C.
Carbon Dioxide
-
D.
Nitrous Oxide
Solution
Chlorofluorocarbons (CFCs) are known to deplete the ozone layer by breaking down ozone molecules in the stratosphere.
Correct Answer:
B
— Chlorofluorocarbons (CFCs)
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Q. Which of the following compounds is responsible for ozone layer depletion? (2019)
-
A.
Methane
-
B.
Chlorofluorocarbons (CFCs)
-
C.
Carbon Dioxide
-
D.
Nitrous Oxide
Solution
Chlorofluorocarbons (CFCs) are known to deplete the ozone layer by breaking down ozone molecules in the stratosphere.
Correct Answer:
B
— Chlorofluorocarbons (CFCs)
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Q. Which of the following compounds is used as a bleaching agent? (2022)
-
A.
H2O2
-
B.
NaCl
-
C.
CaO
-
D.
NH4Cl
Solution
Hydrogen peroxide (H2O2) is commonly used as a bleaching agent.
Correct Answer:
A
— H2O2
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