Organic Chemistry

Hydrocarbons

100

What is the general empirical formula of alkenes?

C_nH_2n

200

How many hydrogens would need to be added to propyne to make it a saturated hydrocarbon?

4

300

How many hydrogen atoms would an alkyne containing 16 carbon atoms have?

30

400

What is the molecular formula of cyclopentane?

C₅H₁₀

500

A hydrocarbon has a molecular formula of C₇H₁₂. It is acyclic. Is it an alkane, alkene, or alkyne?

Alkyne

Isomers

100

Different compounds with different chemical and physical properties are _____ .

Structural Isomers

200

Stereoisomers are defined as having the…

Stereoisomers are defined as having the same structural formula but a different arrangement in space.

300

Diastereomers occur when two carbon atoms that share a double bond have…

2 different groups attached to them

400

What does it mean for enantiomers to be non-superimposable mirror images?

Isomers that are mirror reflections of each other but cannot be placed over each other in a way that all parts match perfectly.

500

How many diastereomers does but-1-ene have?

0

IUPAC naming

100

What is the name of the smallest alkyne?

Ethyne

200

What are compounds that contain a benzene ring called?

Aromatic

300

Unsaturated cyclic hydrocarbons are called...

Cycloalkenes or cycloalkynes

400

This is the correct IUPAC name of the hydrocarbon: (CH₃)₂CHCH₂CH₃

2-methylbutane

500

What is the name of the ketone that has the same molecular formula as butanal?

Butanone

Functional group fun

100

What is the functional group ending in OH?

Hydroxyl group

200

The functional group ending in COH is ____ .

Aldehydes

300

A carbon double bonded to an oxygen in the middle of a molecule is a _____ .

Ketone

400

Ethanal would have what functional group?

Aldehyde, COH

500

This functional group leads to linear geometry around the carbon-carbon bond.

Alkynes

Orgo Properties

100

True or false: Alkenes are generally more reactive than alkanes

True

200

Which of structural isomers of C6H₁4 has the highest boiling point?

hexane

300

Terminal alkenes  have slightly ______ boiling points than their alkane counterparts, but cis, trans, and cyclic alkenes have slightly _________ boiling points

Lower, higher

400

Compared to alkenes of similar molecular weights, alkynes…

Have higher boiling points

500

A chemist has two samples of but-2-ene. One sample has a melting point of -139°C and the other sample has a melting point of -105.6°C.

What would explain this difference?

The samples are stereoisomers