10-minute Quiz : Chapter 21

Which of the following is a possible molecular formula of an alkene?

• A. C₂H₆
• B. C₃H₈
• C. C₄H₁₀
• D. C₆H₁₂

What is the systematic name of the following compound?

• A. 1,3-dimethylcyclopentane

• B. 1,4-dimethylcyclopentane

• C. 2,3-dimethylcyclopentane

• D. 2,5-dimethylcyclopentane

Which of the following statements concerning butanoic acid are correct?

(1) It contains a carbon-oxygen double bond.

(2) It reacts with sodium carbonate.

(3) Its molecular formula is C₄H₁₀O₂.

• A. (1) and (2) only

• B. (1) and (3) only

• C. (2) and (3) only

• D. (1), (2) and (3)

Which of the following functional groups are present in the compound shown below?

(1) Carboxyl group

(2) Hydroxyl group

(3) Carbon-carbon double bond

• A. (1) and (2) only

• B. (1) and (3) only

• C. (2) and (3) only

• D. (1), (2) and (3)

The following table gives information about the properties of four substances W to Z. Which of these substances is likely to be methane?

• A. W

• B. X

• C. Y

• D. Z

Which of the following is NOT a possible structure?

• A

• B

• C

• D

What is the systematic name of the following compound?

• A. 1,1,4,4,4-pentamethylbutan-2-ol

• B. 1,1,5,5-tetramethylpentan-2-ol

• C. 2,2,5-trimethylhexan-4-ol

• D. 2,5,5-trimethylhexan-3-ol

Consider the following statements and choose the best answer:

1st statement

Hex-1-ene and cyclohexane belong to the same homologous series.

2nd statement

Hex-1-ene and cyclohexane can be represented by the same molecular formula.

• A. Both statements are true and the 2nd statement is a correct explanation of the 1st statement.

• B. Both statements are true but the 2nd statement is NOT a correct explanation of the 1st statement.

• C. The 1st statement is false but the 2nd statement is true.

• D. Both statements are false.

What is the molecular formula of the following compound?

• A. C₆H₉

• B. C₆H₁₂

• C. C₇H₁₂

• D. C₇H₁₄

What is the relative molecular mass of propane-1,2-diol?

(Relative atomic masses: H = 1.0, C = 12.0, O = 16.0)

• A. 60.0

• B. 62.0

• C. 70.0

• D. 76.0