Question 1

Which of the following changes will increase the rate of a chemical reaction according to collision theory?

Accepted Answer

Adding a catalyst

Question 2

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

Accepted Answer

$$2KClO_3 \rightarrow 2KCl + 3O_2$$

Question 3

A patient with blood type AB can safely receive blood from which of the following types?

Accepted Answer

All blood types (A, B, AB, O)

Question 4

Which of the following best describes a Fischer projection?

Accepted Answer

A two-dimensional representation where horizontal lines represent bonds coming out of the plane and vertical lines represent bonds going behind the plane

Question 5

Which statement correctly distinguishes between diastereomers and enantiomers?

Accepted Answer

Enantiomers are non-superimposable mirror images, diastereomers are not mirror images

Question 6

Given the Fischer projection of D-glucose, which of the following is the correct way to draw its pyranose (cyclic) form?

Accepted Answer

By connecting the carbonyl carbon (C1) to the hydroxyl group on C5

Question 7

Which of the following is a correct example of a disaccharide and its glycosidic bond type?

Accepted Answer

Lactose: $$\beta(1 \rightarrow 4)$$

Question 8

Which of the following best describes a polysaccharide?

Accepted Answer

A carbohydrate made of many monosaccharide units joined by glycosidic bonds

Question 9

Which of the following is a correct classification for the carbohydrate fructose?

Accepted Answer

A ketohexose

Question 10

What is the main difference between an alpha and a beta anomer of glucose?

Accepted Answer

The position of the hydroxyl group on carbon 1 relative to the CH$$_2OH $$group

Question 11

Which of the following is a secondary alcohol?

Accepted Answer

2-Propanol

Question 12

Which reaction is an example of a redox reaction?

Accepted Answer

$$2H_2 + O_2$ \rightarrow 2H_2O$$

Question 13

How many Calories are provided by 10 grams of carbohydrate? (Assume 4 kcal/g for carbohydrates)

Accepted Answer

40 Calories

Question 14

Which of the following best describes the energy diagram of an exothermic reaction?

Accepted Answer

The products have lower energy than the reactants

Question 15

Which of the following reactions is endergonic?

Accepted Answer

Photosynthesis: $$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6$ + 6O_2$$

Question 16

Which of the following is a correct example of a single exchange (single displacement) reaction?

Accepted Answer

$$Zn + 2HCl \rightarrow $$ZnCl_2$$ + H_2$

Question 17

Which factor does NOT affect the rate of a chemical reaction?

Accepted Answer

Color of the reactants

Question 18

Which of the following best describes a hydrolysis reaction?

Accepted Answer

A reaction in which water is added to break a bond in a molecule

Question 19

Which of the following statements about glycosidic bonds is correct?

Accepted Answer

They are formed between the anomeric carbon of one sugar and a hydroxyl group of another

Question 20

Which of the following is a correct example of a double exchange (double displacement) reaction?

Accepted Answer

$$NaCl + $$AgNO_3$$ \rightarrow $$NaNO_3$$ + AgCl$$

Test 3 Study Guide: Chemical Reactions, Carbohydrates, and Related Concepts

Study Guide - Practice Questions

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