Question 1

Which functional group is present in a molecule with the structure $$\mathrm{CH_3CH_2CH_2NHCH_2CH_2CH_3}$$?

Accepted Answer

Amine

Question 2

A molecule has the following condensed formula: $$\mathrm{CH_3CH_2COH}. $$Which functional group does it contain?

Accepted Answer

Aldehyde

Question 3

Which of the following is the correct IUPAC name for a molecule with the structure $$\mathrm{CH_3CH_2CH_2CH(OH)CH_2CH_3}$$?

Accepted Answer

3-Hexanol

Question 4

What is the correct IUPAC name for a molecule with a five-carbon chain, a methyl group on carbon 3, a double bond between carbons 4 and 5, and an alcohol group on carbon 2?

Accepted Answer

3-methylpent-4-en-2-ol

Question 5

Given the structure $$\mathrm{CH_3CH_2CH_2CHO}$$, which functional group is present and what is its suffix in IUPAC nomenclature?

Accepted Answer

Aldehyde, -al

Question 6

Which of the following molecules contains both an alcohol and an ether functional group?

Accepted Answer

$$\mathrm{HOCH_2CH_2OCH_3}$$

Question 7

A molecule is named 5-chloro-2-ethylheptanal. Which of the following statements is true about its structure?

Accepted Answer

It contains a seven-carbon chain with an aldehyde group at carbon 1, a chlorine at carbon 5, and an ethyl group at carbon 2.

Question 8

Which of the following is the correct structure for 5-fluorohex-3-yn-2-one?

Accepted Answer

A six-carbon chain with a triple bond between carbons 3 and 4, a ketone at carbon 2, and a fluorine at carbon 5.

Question 9

Which of the following best describes the partial charges in a molecule of ethanol ($$\mathrm{CH_3CH_2OH}$$)?

Accepted Answer

The oxygen atom has a partial negative charge, and the hydrogen of the hydroxyl group has a partial positive charge.

Question 10

A molecule has the formula $$\mathrm{CH_3CH_2CH_2CN}. $$Which functional group is present, and what is its characteristic feature?

Accepted Answer

Nitrile; contains a carbon triple-bonded to nitrogen

Question 11

Which of the following molecules is an example of a ketone?

Accepted Answer

$$\mathrm{CH_3COCH_3}$$

Question 12

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

Accepted Answer

An aldehyde has a carbonyl group at the end of the carbon chain, while a ketone has it within the chain.

Question 13

A student is asked to draw partial charges on the atoms in methanol ($$\mathrm{CH_3OH}). $$Which of the following is correct?

Accepted Answer

Oxygen is partially negative, and the hydrogen attached to oxygen is partially positive.

Question 14

Which of the following is the correct IUPAC name for a molecule with the structure $$\mathrm{CH_3CH_2CH_2COOH}$$?

Accepted Answer

Butanoic acid

Question 15

A molecule is named 2-bromo-3-methylpentan-1-ol. Which of the following statements is true about its structure?

Accepted Answer

It has a five-carbon chain, a bromine at carbon 2, a methyl at carbon 3, and an alcohol at carbon 1.

Question 16

Which of the following molecules contains a primary amine functional group?

Accepted Answer

$$\mathrm{CH_3CH_2NH_2}$$

Question 17

Which of the following best describes the partial charges in acetonitrile ($$\mathrm{CH_3CN}$$)?

Accepted Answer

The nitrogen atom has a partial negative charge, and the carbon triple-bonded to nitrogen has a partial positive charge.

Question 18

Which of the following is the correct IUPAC name for a molecule with the structure $$\mathrm{CH_3CH_2CH_2CH_2Br}$$?

Accepted Answer

1-bromobutane

Question 19

A molecule is named 2-ethyl-3-methylpentanal. Which of the following is true about its structure?

Accepted Answer

It has a five-carbon chain with an ethyl at carbon 2, a methyl at carbon 3, and an aldehyde at carbon 1.

Question 20

Which of the following best describes the difference between a primary, secondary, and tertiary alcohol?

Accepted Answer

A primary alcohol has the $$\mathrm{OH}$$ group attached to a carbon bonded to one other carbon; secondary to two; tertiary to three.

General Chemistry Guidance: Organic Molecule Drawing and Nomenclature

Guida di studio - Domande di pratica

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