Integrated Science

Question 1

1What is the chemical name of the binary compound NaCl?

Easy

A. sodium chloride B. sodium hydroxide C. sodium chlorate D. sodium chlorine

Question 2

2A solid whose particles are arranged in a regular repeating pattern is

Easy

A. amorphous B. liquid C. gaseous D. crystalline

Question 3

3Ionic solids conduct electricity only when molten or in solution because

Hard

A. heat creates current B. they become metals C. electrons are released D. their ions become free to move

Question 4

4What is the formula of aluminium oxide? (Al = +3, O = −2)

Easy

A. Al₃O₂ B. Al₂O₃ C. AlO D. AlO₃

Question 5

5The formula of aluminium oxide is

Medium

A. Al₃O₂ B. Al₂O₃ C. AlO₃ D. AlO

Question 6

6The formula of iron(III) oxide is

Hard

A. FeO B. Fe₃O₄ C. FeO₃ D. Fe₂O₃

Question 7

7A compound made of exactly two elements is called

Easy

A. an isotope B. a mixture C. a binary compound D. an alloy

Question 8

8What is the formula of magnesium oxide?

Easy

A. MgO B. Mg₂O C. Mg₂O₃ D. MgO₂

Question 9

9Which property makes copper useful for cooking pots?

Easy

A. magnetism B. good conduction of heat C. low density D. brittleness

Question 10

10Which of these solids is a non-metal?

Easy

A. aluminium B. iron C. copper D. sulphur