Question 1

Which of the following statements best explains why the carbonyl group ($$C=O) in $$aldehydes and ketones is highly polar?

Accepted Answer

The oxygen atom is more electronegative than carbon, creating a significant dipole moment.

Question 2

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

Accepted Answer

Acetone

Question 3

What is the IUPAC name for the following compound: $$CH_3CH_2COH$$?

Accepted Answer

Propanal

Question 4

Which of the following best describes the difference between constitutional (structural) isomers and stereoisomers?

Accepted Answer

Constitutional isomers have different connectivity of atoms, while stereoisomers have the same connectivity but differ in spatial arrangement.

Question 5

A student is given a sample of an unknown compound and performs Tollen's test. A silver mirror forms on the test tube. What does this indicate about the compound?

Accepted Answer

The compound is an aldehyde.

Question 6

Which of the following is the correct balanced chemical equation for the dissociation of acetic acid ($$CH_3COOH) in $$water?

Accepted Answer

$$CH_3COOH + H_2O \rightarrow CH_3COO^- + H_3O^+$$

Question 7

Which of the following statements about the boiling points of carboxylic acids is correct?

Accepted Answer

Carboxylic acids have higher boiling points than aldehydes and ketones of similar molecular weight due to hydrogen bonding.

Question 8

Which of the following is the correct product of the neutralization reaction between benzoic acid ($$C_6H_5COOH) $$and potassium hydroxide ($$KOH$$)?

Accepted Answer

$$C_6H_5COOK + H_2O$$

Question 9

Which of the following best describes the products of acid hydrolysis of an ester?

Accepted Answer

A carboxylic acid and an alcohol

Question 10

Given the ester ethyl acetate ($$CH_3COOCH_2CH_3$$), which alcohol and carboxylic acid were used to form it?

Accepted Answer

Ethanol and acetic acid

Question 11

Which of the following is a primary amine?

Accepted Answer

Methylamine

Question 12

What is the product when ethylamine ($$CH_3CH_2NH_2) $$reacts with hydrochloric acid ($$HCl$$)?

Accepted Answer

$$CH_3CH_2NH_3^+Cl^-$$

Question 13

Which of the following statements about the solubility of amines in water is correct?

Accepted Answer

Amines with small alkyl groups are soluble in water due to hydrogen bonding.

Question 14

Which of the following is the correct balanced equation for the base hydrolysis (saponification) of methyl benzoate ($$C_6H_5COOCH_3) $$with sodium hydroxide ($$NaOH$$)?

Accepted Answer

$$C_6H_5COOCH_3 + NaOH \rightarrow C_6H_5COONa + CH_3OH$$

Question 15

Which of the following molecules contains a chiral center?

Accepted Answer

2-Butanol ($$CH_3CH(OH)CH_2CH_3)$$

Question 16

Which of the following is the correct IUPAC name for the amide formed from acetic acid and methylamine?

Accepted Answer

N-methylacetamide

Question 17

Which of the following best describes the products of acid hydrolysis of an amide?

Accepted Answer

A carboxylic acid and an ammonium ion

Question 18

A molecule has the following Fischer projection. The $$-OH$$ group on the chiral carbon farthest from the carbonyl is on the right. How is this molecule classified?

Accepted Answer

D-isomer

Question 19

Which of the following statements about enantiomers is correct?

Accepted Answer

Enantiomers are non-superposable mirror images of each other.

Question 20

Which of the following is the correct product of the reaction between propanoic acid ($$CH_3CH_2COOH) $$and sodium hydroxide ($$NaOH$$)?

Accepted Answer

$$CH_3CH_2COONa + H_2O$$

Aldehydes, Ketones, Chiral Molecules, Carboxylic Acids, Esters, Amines, and Amides: Study Guide

Guida di studio - Domande di pratica

Study guide - Flashcard