Kuster ~ Organic Chemistry ~ Isomers

Which compound is an isomer of pentane?

• butane

• methyl butane

• propane

• methyl propane

Which pair of compounds are isomers?

• NO₂ and N₂O₄

• P₂O₅ and P₄O₁₀

• HCOOH and CH₃COOH

• CH₃OCH₃ and C₂H₅OH

The three isomers of pentane have different

• formula masses

• molecular formulas

• empirical formulas

• structural formulas

The compounds CH₃OCH₃ and CH₃CH₂OH are isomers of each other. These two compounds must have the same

• density

• melting point

• reactivity

• molecular formula

Two substances have different physical and chemical properties. Both substances have molecules that contain two carbon atoms, one oxygen atom, and six hydrogen atoms. These two substances must be

• isomers of each other

• isotopes of each other

• the same compound

• the same hydrocarbon

A sample composed only of atoms having the same atomic number is classified as

• a compound

• an element

• a solution

• an isomer

Which two compounds are isomers of each other?

• CH₃CH₂COOH and CH₃COOCH₂CH₃

• CH₃CH₂CHO and CH₃COCH₃

• CH₃CHBrCH₃ and CH₂BrCHBrCH₃

• CH₃CHOHCH₃ and CH₃CHOHCH₂OH

The two isomers of butane have different

• formula masses

• molecular formulas

• empirical formulas

• structural formulas

Are the compounds shown isomers

• Yes
• No

Tags

NGSS.HS-PS1-3

Which formulas represent butane or its isomer?

(1) CH₃(CH2)₂CH₃

(2) CH₃CH(CH₃)CH₃

(3) (CH₃)₃CH

• 1 and 2 only

• 1 and 3 only

• 2 and 3 only

• 1 , 2 and 3

Tags

NGSS.HS-PS1-3