Question 1

Which of the following statements best describes a saturated hydrocarbon?

Accepted Answer

It contains only single bonds between carbon atoms.

Question 2

What is the correct IUPAC name for the following compound: $$\mathrm{CH_3CH_2CH_2CH_3}$$?

Accepted Answer

Butane

Question 3

Which of the following is the correct molecular formula for cyclohexane?

Accepted Answer

$$\mathrm{C_6H_{12}}$$

Question 4

Which functional group is present in the following molecule: $$\mathrm{CH_3CH_2OH}$$?

Accepted Answer

Alcohol

Question 5

Which of the following best describes a structural isomer?

Accepted Answer

Compounds with the same molecular formula but different connectivity of atoms.

Question 6

Which of the following molecules contains a chiral center?

Accepted Answer

$$\mathrm{CH_3CH(OH)CH_2CH_3}$$

Question 7

Which of the following best describes the difference between an exergonic and an endergonic reaction?

Accepted Answer

Exergonic reactions have $$\Delta G  0$$ and require free energy input.

Question 8

A reaction has an activation energy of $$50\ \mathrm{kJ/mol}$$ and is performed at room temperature. Which of the following changes will increase the rate of the reaction?

Accepted Answer

Increasing the temperature.

Question 9

Which of the following is a correct balanced equation for the complete combustion of propane ($$\mathrm{C_3H_8}$$)?

Accepted Answer

$$\mathrm{C_3H_8 + 5O_2 \rightarrow 3CO_2 + 4H_2O}$$

Question 10

Which of the following is an example of a synthesis reaction?

Accepted Answer

$$\mathrm{2H_2 + O_2$ \rightarrow 2H_2O}$$

Question 11

In the following reaction, which substance is oxidized? $$\mathrm{2Na + Cl_2$ \rightarrow 2NaCl}$$

Accepted Answer

Na

Question 12

Which of the following best describes the role of an enzyme in a biological reaction?

Accepted Answer

It lowers the activation energy of the reaction.

Question 13

Which of the following is the product of the hydrogenation of 1-butene ($$\mathrm{CH_2$=CHCH_2CH_3}$$)?

Accepted Answer

Butane ($$\mathrm{CH_3CH_2CH_2CH_3})$$

Question 14

Which of the following statements about Markovnikov’s rule is correct?

Accepted Answer

When adding $$\mathrm{H_2O} to an $$alkene, the hydrogen atom attaches to the carbon with more hydrogens already attached.

Question 15

Which of the following is a correct example of a condensation reaction?

Accepted Answer

$$\mathrm{C_2H_5OH + CH_3COOH \rightarrow CH_3COOC_2H_5 + H_2O}$$

Question 16

Which of the following best describes a reversible reaction?

Accepted Answer

A reaction in which products can react to reform reactants.

Question 17

Which of the following is the correct condensed structural formula for 2-bromopropane?

Accepted Answer

$$\mathrm{CH_3CHBrCH_3}$$

Question 18

Which of the following best describes the difference between a cycloalkane and its straight-chain alkane counterpart?

Accepted Answer

A cycloalkane has two fewer hydrogen atoms than the straight-chain alkane with the same number of carbons.

Question 19

Which of the following is the correct product of the hydration of 2-butene ($$\mathrm{CH_3CH=$$CHCH_3$$}) $$using Markovnikov’s rule?

Accepted Answer

2-butanol ($$\mathrm{CH_3CH(OH)CH_2CH_3})$$

Question 20

Which of the following statements about oxidation and reduction in organic chemistry is correct?

Accepted Answer

Oxidation increases the number of C–O bonds or decreases the number of C–H bonds.

Study Guide: Organic Compounds and Chemical Reactions (Chapters 4 & 5)

Study Guide - Practice Questions

Study Guide - Flashcards