Welcome to your Grade 10 Chemistry chapter 5
After carefully reading the following 30 questions, choose the correct answer.
1.
Which of the following properties is characteristic of metals?
2.
What is the most abundant metal in the Earth's crust?
3.
Which nonmetal exists as a liquid at room temperature?
4.
What is the primary ore used for the extraction of iron?
5.
Which substance is used to reduce iron (III) oxide in a blast furnace?
6.
What is the name of the process used to extract aluminum from alumina?
7.
Which of the following is an alloy of copper and zinc?
8.
What is the purpose of adding limestone to a blast furnace during iron extraction?
9.
Which nonmetal is used in the manufacture of sulfuric acid by the Contact Process?
10.
What is the term for a mixture of two or more metals, or a metal and a nonmetal?
11.
Which of the following metals is found free in nature?
12.
Which gas is produced when reactive metals react with dilute acids?
13.
What is the chemical formula of rust?
14.
Which nonmetal is essential for the process of respiration?
15.
Which method is commonly used to prevent the rusting of iron by coating it with zinc?
16.
What is the main constituent of natural gas?
17.
Which form of iron is the purest and contains the least amount of carbon?
18.
Which nonmetal is used as a disinfectant in drinking water?
19.
What catalyst is used in the Contact Process for making sulfuric acid?
20.
Which property allows metals to be drawn into thin wires?
21.
What is the main impurity removed from bauxite during the production of aluminum?
22.
Which metal is liquid at room temperature?
23.
Nitrogen is used in the Haber process to produce:
24.
Which gas is produced by the reaction of calcium carbide with water?
25.
Which of the following is a nonmetallic element found in Group 15 of the periodic table?
26.
What is the product of the reaction between sulfur and iron upon heating?
27.
Which metal is commonly used for making food cans because it is non-toxic and resists corrosion?
28.
Phosphorus exists in several forms called:
29.
Which of these is a property of nonmetals?
30.
What is the process of heating an ore in a limited supply of air to remove volatile impurities?
