Major Competitive Exams
Q. Which of the following compounds is a ketone?
-
A.
CH3CHO
-
B.
C2H5OH
-
C.
C3H6O
-
D.
C4H8
Solution
C3H6O is a ketone as it has a carbonyl group (C=O) between two carbon atoms.
Correct Answer: C — C3H6O
Learn More →
Q. Which of the following compounds is a ketone? (2023) 2023
-
A.
Propanal
-
B.
Butanone
-
C.
Benzaldehyde
-
D.
Ethanal
Solution
Butanone is a ketone, characterized by having the carbonyl group (C=O) between two carbon atoms.
Correct Answer: B — Butanone
Learn More →
Q. Which of the following compounds is a pair of structural isomers?
-
A.
C2H6 and C2H4
-
B.
C3H8 and C3H6
-
C.
C4H10 and C4H10
-
D.
C5H12 and C5H12
Solution
C2H6 (ethane) and C2H4 (ethylene) have different molecular structures, thus they are structural isomers.
Correct Answer: A — C2H6 and C2H4
Learn More →
Q. Which of the following compounds is a phenol?
-
A.
Benzyl alcohol
-
B.
Cyclohexanol
-
C.
Phenol
-
D.
Ethanol
Solution
Phenol is an aromatic compound with a hydroxyl group directly attached to a benzene ring.
Correct Answer: C — Phenol
Learn More →
Q. Which of the following compounds is a primary amine?
-
A.
CH3NH2
-
B.
(CH3)2NH
-
C.
(CH3)3N
-
D.
C6H5NH2
Solution
CH3NH2 is a primary amine as it has one alkyl group attached to the nitrogen.
Correct Answer: A — CH3NH2
Learn More →
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
Learn More →
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
Learn More →
Q. Which of the following compounds is a saturated hydrocarbon?
-
A.
C2H2
-
B.
C3H4
-
C.
C4H8
-
D.
C5H12
Solution
C5H12 (pentane) is a saturated hydrocarbon with single bonds only.
Correct Answer: D — C5H12
Learn More →
Q. Which of the following compounds is a strong acid formed from hydrogen?
-
A.
HCl
-
B.
H2O
-
C.
NH3
-
D.
CH4
Solution
Hydrochloric acid (HCl) is a strong acid formed from hydrogen.
Correct Answer: A — HCl
Learn More →
Q. Which of the following compounds is a strong electrolyte?
-
A.
Glucose
-
B.
Acetic acid
-
C.
Sodium chloride
-
D.
Urea
Solution
Sodium chloride dissociates completely in solution, making it a strong electrolyte.
Correct Answer: C — Sodium chloride
Learn More →
Q. Which of the following compounds is a strong field ligand?
-
A.
H2O
-
B.
NH3
-
C.
CN-
-
D.
Cl-
Solution
CN- is a strong field ligand and causes large splitting of d-orbitals.
Correct Answer: C — CN-
Learn More →
Q. Which of the following compounds is a strong oxidizing agent?
-
A.
H2O2
-
B.
NaCl
-
C.
FeCl3
-
D.
CuSO4
Solution
Hydrogen peroxide (H2O2) is a strong oxidizing agent.
Correct Answer: A — H2O2
Learn More →
Q. Which of the following compounds is a strong reducing agent?
-
A.
H2O
-
B.
H2S
-
C.
HCl
-
D.
H2
Solution
Hydrogen gas (H2) is a strong reducing agent as it can donate electrons to other substances.
Correct Answer: D — H2
Learn More →
Q. Which of the following compounds is an aldehyde?
-
A.
C2H5OH
-
B.
CH3CHO
-
C.
C3H6O
-
D.
C6H12O6
Solution
The compound CH3CHO is an aldehyde, characterized by the presence of the -CHO functional group.
Correct Answer: B — CH3CHO
Learn More →
Q. Which of the following compounds is an alkene?
-
A.
C2H6
-
B.
C3H8
-
C.
C4H8
-
D.
C5H12
Solution
C4H8 is an alkene as it contains a carbon-carbon double bond.
Correct Answer: C — C4H8
Learn More →
Q. Which of the following compounds is an alkyne?
-
A.
C2H4
-
B.
C3H6
-
C.
C4H8
-
D.
C5H8
Solution
C5H8 is an alkyne, as it follows the general formula C_nH_(2n-2).
Correct Answer: D — C5H8
Learn More →
Q. Which of the following compounds is an aromatic alkyne?
-
A.
Phenylacetylene
-
B.
Propyne
-
C.
Ethyne
-
D.
1-butyne
Solution
Phenylacetylene is an aromatic alkyne as it contains a phenyl group attached to a triple bond.
Correct Answer: A — Phenylacetylene
Learn More →
Q. Which of the following compounds is an aromatic compound?
-
A.
Cyclohexane
-
B.
Benzene
-
C.
Cyclopentene
-
D.
Hexene
Solution
Benzene is an aromatic compound due to its cyclic structure and delocalized pi electrons.
Correct Answer: B — Benzene
Learn More →
Q. Which of the following compounds is an aromatic hydrocarbon?
-
A.
Cyclohexane
-
B.
Benzene
-
C.
Cyclopropane
-
D.
Hexene
Solution
Benzene is a cyclic compound with delocalized pi electrons, making it aromatic.
Correct Answer: B — Benzene
Learn More →
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
Learn More →
Q. Which of the following compounds is an example of a chelating agent?
-
A.
EDTA
-
B.
NaCl
-
C.
HCl
-
D.
K2SO4
Solution
EDTA (ethylenediaminetetraacetic acid) is a well-known chelating agent.
Correct Answer: A — EDTA
Learn More →
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
Learn More →
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
Learn More →
Q. Which of the following compounds is an example of a cyclic alkene?
-
A.
Cyclopropene
-
B.
Butene
-
C.
Hexene
-
D.
Octene
Solution
Cyclopropene is an example of a cyclic alkene.
Correct Answer: A — Cyclopropene
Learn More →
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
Learn More →
Q. Which of the following compounds is an example of a ketone?
-
A.
Propanal
-
B.
Butan-2-one
-
C.
Benzaldehyde
-
D.
Acetic acid
Solution
Butan-2-one is a ketone as it has the carbonyl group (C=O) located between two carbon atoms.
Correct Answer: B — Butan-2-one
Learn More →
Q. Which of the following compounds is an example of a Lewis acid?
-
A.
NH3
-
B.
H2O
-
C.
BF3
-
D.
CH4
Solution
BF3 is a Lewis acid because it can accept an electron pair due to its incomplete octet.
Correct Answer: C — BF3
Learn More →
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
Learn More →
Q. Which of the following compounds is an example of a polar covalent bond?
-
A.
Cl2
-
B.
HCl
-
C.
NaCl
-
D.
CH4
Solution
HCl has a polar covalent bond due to the difference in electronegativity between hydrogen and chlorine.
Correct Answer: B — HCl
Learn More →
Q. Which of the following compounds is an example of a salt?
-
A.
NaCl
-
B.
H2O
-
C.
C6H12O6
-
D.
NH3
Solution
Sodium chloride (NaCl) is a classic example of a salt formed from the reaction of an acid and a base.
Correct Answer: A — NaCl
Learn More →
Showing 11071 to 11100 of 12915 (431 Pages)