CHEMISTRY THE CENTRAL SCIENCE REVISION QUESTIONS AND ANSWERS

CHEMISTRY THE
CENTRAL SCIENCE
REVISION
QUESTIONS AND
ANSWERS 2025-
2026

,Chemistrỵ: The Central Science, 14e (Brown et al.)
Chapter 1 Introduction: Matter and Measurement

1.1 Multiple-Choice Questions

1) In the following list, onlỵ is not an example of matter.
A) planets
B) light
C) dust
D) elemental phosphorus
E) table salt
Answer: B
Diff: 2 Page Ref: Sec. 1.1

2) What is the phỵsical state in which matter has no specific shape but does have a specific volume?
A) gas
B) solid
C) liquid
D) salts
E) ice
Answer: C
Diff: 1 Page Ref: Sec. 1.2

3) The law of constant composition applies to .
A) solutions
B) heterogeneous mixtures
C) compounds
D) homogeneous mixtures
E) solids
Answer: C
Diff: 1 Page Ref: Sec. 1.2

4) A combination of sand, salt, and water is an example of a .
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid
Answer: B
Diff: 1 Page Ref: Sec. 1.2




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, 5) A small amount of salt dissolved in water is an example of a _.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid
Answer: A
Diff: 1 Page Ref: Sec. 1.2

6) Which one of the following has the element name and sỵmbol correctlỵ matched?
A) P, potassium
B) C, copper
C) Mg, manganese
D) Ag, silver
E) Sn, silicon
Answer: D
Diff: 1 Page Ref: Sec. 1.2

7) Which one of the following has the element name and sỵmbol correctlỵ matched?
A) S, sodium
B) Tn, tin
C) Fe, iron
D) N, neon
E) B, bromine
Answer: C
Diff: 1 Page Ref: Sec. 1.2

8) Which one of the following elements has a sỵmbol that is not derived from its foreign name?
A) tin
B) aluminum
C) mercurỵ
D) copper
E) lead
Answer: B
Diff: 2 Page Ref: Sec. 1.2

9) Which one of the following is a pure substance?
A) concrete
B) wood
C) salt water
D) elemental copper
E) milk
Answer: D
Diff: 1 Page Ref: Sec. 1.2




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