Question 1

For the pair of molecules shown in (a) of the first image, what is the relationship between them?

Accepted Answer

They are cis-trans (geometric) isomers.

Question 2

The molecule shown in the second image is best described as which of the following?

Accepted Answer

Aldopentose

Question 3

Which functional groups are present in the molecule shown in the fourth image?

Accepted Answer

Ether and amine

Question 4

What is the IUPAC name for the molecule shown in the fifth image?

Accepted Answer

2-bromo-3,3-dimethylhexane

Question 5

Which of the following best describes the relationship between the two molecules shown in the third image?

Accepted Answer

They are structural isomers.

Question 6

A chemical reaction has a negative change in Gibbs free energy ($$\Delta G \u003c 0) at $$constant temperature and pressure. What does this indicate?

Accepted Answer

The reaction is spontaneous and will happen on its own in the forward direction.

Question 7

Which combination of changes will consistently result in an increase in the rate of a chemical reaction?

Accepted Answer

Increasing the temperature, adding a catalyst, and increasing the concentration of reagents

Question 8

What type of chemical reaction is represented by the equation $$2H_2O \rightarrow 2H_2 + O_2$?

Accepted Answer

Decomposition reaction

Question 9

In the combustion reaction $$2C_2H_6 + 7O_2 \rightarrow 4CO_2 + 6H_2O$$, what is the total number of oxygen atoms on the product side?

Accepted Answer

14

Question 10

In the hydration reaction of methylcyclohexene shown in the last image, what is the major product according to Markovnikov's rule?

Accepted Answer

The alcohol forms at the more substituted carbon.

Question 11

Which of the following statements about the relationship between pressure and volume of a gas is correct?

Accepted Answer

As pressure increases, volume decreases.

Question 12

Which functional group is present in both the molecule in image 4 and image 5?

Accepted Answer

Amine

Question 13

Which of the following best describes the molecule shown in image 2?

Accepted Answer

It is a reducing sugar.

Question 14

Which of the following is the correct expanded formula for 2-methylbutane?

Accepted Answer

$$CH_3CH(CH_3$)CH_2CH_3$$

Question 15

Which of the following best describes the relationship between the molecules in (b) of the first image?

Accepted Answer

They are structural isomers.

Relationships Between Pairs of Organic Compounds (Isomerism)

Study Guide - Practice Questions