Question 1

Which of the following compounds is classified as an aromatic hydrocarbon according to Huckel’s Rule?

Accepted Answer

Benzene

Question 2

What is the correct IUPAC name for the compound with the formula $$CH_3CH_2CH_2CH_3$$?

Accepted Answer

Butane

Question 3

Which functional group is present in all alcohols?

Accepted Answer

$$-OH$$

Question 4

A compound with the formula $$CH_3CH_2C\equiv CH is $$best classified as:

Accepted Answer

An alkyne

Question 5

Which of the following statements about cycloalkanes is TRUE?

Accepted Answer

Cycloalkanes are composed of $$sp^3$$ hybridized carbons forming a ring.

Question 6

Which compound contains a carbonyl group bonded to two alkyl groups?

Accepted Answer

Ketone

Question 7

What is the functional group present in carboxylic acids?

Accepted Answer

$$-COOH$$

Question 8

Which of the following is the correct structure for propene?

Accepted Answer

$$CH_2$$=$$CHCH_3$$

Question 9

Which compound is an example of a nitrile?

Accepted Answer

Acetonitrile ($$CH_3CN)$$

Question 10

A student is given a compound with the formula $$CH_3CH_2OCH_3. $$Which class does this compound belong to?

Accepted Answer

Ether

Question 11

Which of the following is a carboxylic acid derivative that contains a nitrogen atom attached to the carbonyl group?

Accepted Answer

Amide

Question 12

Which of the following best describes the difference between an aldehyde and a ketone?

Accepted Answer

Aldehydes have one alkyl group and one hydrogen attached to the carbonyl carbon, while ketones have two alkyl groups.

Question 13

Which of the following compounds contains a triple bond?

Accepted Answer

But-1-yne

Question 14

Which of the following is the correct condensed formula for ethylbenzene?

Accepted Answer

$$C_6H_5CH_2CH_3$$

Question 15

A compound is found to contain only carbon and hydrogen, with a molecular formula $$C_5H_{10}. $$Which class of hydrocarbons could this compound belong to?

Accepted Answer

Cycloalkane

Question 16

Which of the following is the correct IUPAC name for $$CH_3CH_2CH_2OH$$?

Accepted Answer

Propan-1-ol

Question 17

Which of the following is a correct statement about esters?

Accepted Answer

Esters are carboxylic acid derivatives containing a carbonyl group bonded to an oxygen atom.

Question 18

Which of the following compounds is an amine?

Accepted Answer

$$CH_3NH_2$$

Question 19

A patient is exposed to a solvent containing $$CH_3CH_2OCH_2CH_3. $$Which class of organic compound is this, and what is a common use for it?

Accepted Answer

Ether; commonly used as an anesthetic

Question 20

Which of the following is the correct structure for but-2-ene?

Accepted Answer

$$CH_3CH=$$CHCH_3$$

Classes of Organic Compounds: Functional Groups and Nomenclature

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