10-minute Quiz : Chapter 43 Isomerism

Which of the compounds is NOT an isomer of X?

• A
• B
• C
• D

Which of the following statements concerning isomers MUST be correct?

• A. They have the same molecular mass.
• B. The have the same molecular structures.
• C. They have the same physical properties.
• D. They have the same chemical properties.

Consider the three carbon compounds as shown. What type of isomerism can these compounds exhibit?

• A. Chain isomerism
• B. Position isomerism
• C. Cis-trans isomerism

• D. Enantiomerism

Consider the two compounds with the same molecular formula C₅H₁₀ as shown. Which of the following statements about these compounds is correct?

• A. They belong to the same homologous series.
• B. They have the same percentage composition by mass.
• C. They have the same boiling point.
• D. They are a pair of stereoisomers.

Consider the two compounds as shown. Which of the following statements about these compounds is correct?

• A. They are a pair of chain isomers.
• B. They are a pair of position isomers.
• C. They are a pair of functional group isomers.
• D. They are a pair of stereoisomers.

Which of the following compounds can exhibit cis-trans isomerism?

(1) CH₃CH=CH₂

(2) CH₃CH=CHCH₂CH₃

(3) CH₃CH=CHCH₃

• A. (1) only
• B. (2) only
• C. (1) and (3) only
• D. (2) and (3) only

Which of the following compounds can exhibit enantiomerism?

• A. CH₂(OH)CH₂(OH)
• B. CH₃CHClCOOH
• C. CH₂=CHCl
• D. CHCl=CHCl

Which of the following compounds exhibits both cis-trans isomerism and enantiomerism?

• A. CH₃CH₂CHBrCH=CHBr
• B. CH₂BrCH₂Br
• C. CH₃CH=CHCH₂CH₃
• D. CH₃CHBrCH=CH₂

Which of the pairs of compounds as shown is/are isomers?

• A. (1) only
• B. (2) only
• C. (1) and (3) only
• D. (2) and (3) only

Which of the pairs of compounds as shown are identical?

• A. (1) and (2) only
• B. (1) and (3) only
• C. (2) and (3) only
• D. (1), (2) and (3)