Hydrocarbons: Alkanes, Alkenes, Alkynes - Advanced Concepts
Q. What is the correct IUPAC name for the compound with the formula C5H10?
-
A.
Pentane
-
B.
Cyclopentane
-
C.
1-pentene
-
D.
2-pentene
Solution
C5H10 is a saturated hydrocarbon, which is pentane.
Correct Answer: A — Pentane
Learn More →
Q. What is the IUPAC name for the compound with the formula C5H10?
-
A.
Pentane
-
B.
Cyclopentane
-
C.
2-Pentene
-
D.
1-Pentene
Solution
C5H10 is an alkene and can be named as pentene, but without specifying the position, it is simply pentane.
Correct Answer: A — Pentane
Learn More →
Q. Which functional group is present in alkynes?
-
A.
Double bond
-
B.
Triple bond
-
C.
Alcohol
-
D.
Ester
Solution
Alkynes are characterized by the presence of a triple bond between carbon atoms.
Correct Answer: B — Triple bond
Learn More →
Q. Which of the following is a characteristic feature of alkenes?
-
A.
Saturated hydrocarbons
-
B.
Presence of a double bond
-
C.
Presence of a triple bond
-
D.
Only single bonds
Solution
Alkenes are defined by the presence of at least one carbon-carbon double bond.
Correct Answer: B — Presence of a double bond
Learn More →
Q. Which of the following is a functional group characteristic of alkynes?
-
A.
-OH
-
B.
-NH2
-
C.
-C≡C-
-
D.
-C=C-
Solution
The functional group characteristic of alkynes is the triple bond represented as -C≡C-.
Correct Answer: C — -C≡C-
Learn More →
Q. Which of the following is the correct mechanism for the addition of HBr to propene?
-
A.
Electrophilic addition
-
B.
Nucleophilic substitution
-
C.
Radical substitution
-
D.
Elimination
Solution
The addition of HBr to propene occurs via an electrophilic addition mechanism.
Correct Answer: A — Electrophilic addition
Learn More →
Q. Which reaction mechanism is primarily involved in the addition of H2 across an alkene?
-
A.
Electrophilic addition
-
B.
Nucleophilic substitution
-
C.
Radical substitution
-
D.
Elimination
Solution
The addition of H2 to an alkene is an electrophilic addition reaction.
Correct Answer: A — Electrophilic addition
Learn More →
Showing 1 to 7 of 7 (1 Pages)
