organic chemistry midterm Exam 2026
Questions and Answers
hydrocarbons - Correct answer-- carbon and hydrogen
- alkanes
- alkenes
- alynes
- cyclic hydrocarbons
IUPAC - Correct answer-International Union of Pure and Applied Chemistry
Alkanes - Correct answer-- single bonds
ane ending
Cn H2n+2 formula
naming alkanes - Correct answer-1. Find longest chain in the compound
2. use prefix pertaining to that chain
3. number the methyl, ethyl, propyl
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, alphanetical
alkenes - Correct answer-- double bond
end in ene
Cn H2n
naming alkenes - Correct answer-find longest chain
prefix with chain
number where the double bond is - which ever is the lowest number - right to left
or left to right
then say methyls or ethyls and number those
end in ene
trans 2 butene - Correct answer-H's are opposite
carbons double bonded in middle
carbons are opposite
cis 2 butene - Correct answer-carbons are next to each other
hydrogens next to each other
2 carbonds double bonded in middle
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Questions and Answers
hydrocarbons - Correct answer-- carbon and hydrogen
- alkanes
- alkenes
- alynes
- cyclic hydrocarbons
IUPAC - Correct answer-International Union of Pure and Applied Chemistry
Alkanes - Correct answer-- single bonds
ane ending
Cn H2n+2 formula
naming alkanes - Correct answer-1. Find longest chain in the compound
2. use prefix pertaining to that chain
3. number the methyl, ethyl, propyl
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, alphanetical
alkenes - Correct answer-- double bond
end in ene
Cn H2n
naming alkenes - Correct answer-find longest chain
prefix with chain
number where the double bond is - which ever is the lowest number - right to left
or left to right
then say methyls or ethyls and number those
end in ene
trans 2 butene - Correct answer-H's are opposite
carbons double bonded in middle
carbons are opposite
cis 2 butene - Correct answer-carbons are next to each other
hydrogens next to each other
2 carbonds double bonded in middle
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2