Reactivity of metals

Most minerals are not soluble in water. What is the advantage of this characteristics?

• To ease the mining process of mineral

• To allow the mineral to stay exist in the Earth

• To maintain the quality of the mineral

• To maintain the hardness property of the mineral

What non-metal elements that are listed in the reactivity series of metal?

• Oxygen and carbon

• Carbon and nitrogen

• Hidrogen and oxygen

• Carbon and hydrogen

Which compound can be found naturally in the Earth's crust?

I. Metal oxide

II. Metal sulphide

III. Metal carbonate

IV. Silicate

• I and II

• I, II and III

• II, III and IV

• I, II, III and IV

Blast furnace used in the heating of the mixture of ore and carbon extraction method. What is the function of the blast furnace?

• To heat the mixture of iron ore, charcoal and lime stone

• To separate the metal from its ore

• To heat the extracted metal until melt

• To cool and freeze the extraction product

Which of the following metals are able to remove oxygen from carbon dioxide?

I. Sodium

II. Potassium

III. Lead

IV. Magnesium

• I, II and III

• I, II and IV

• II, III and IV

• I, III and IV

Which of the following is an adverse effect of unplanned construction of mines?

• Destruction of habitat

• Loss of water sources

• Depletion of mineral resources

• Loss of food sources

Diagram below shows the apparatus set-up to investigate the properties of compound Q. The gas released turns the lime water chalky. What is compound Q?

• Copper oxide

• Lead sulphide

• Silicon dioxide

• Calcium carbonate

The following equation shows the effect of heat on calcium carbonate. What is P?

• Calcium

• Calcium oxide

• Calcium hydroxide

• Calcium bicarbonate

The diagram shows a setup apparatus for an experiment. What is the aim of the experiment?

• To determine the position of carbon in the reactivity series of metals

• To determine the position of hydrogen in the reactivity series of metals

• To observe the reactivity of metals with carbon dioxide

• To observe the reactivity of metals with water

1. Which of the following statements is true about minerals?

• A. Minerals are substances that consist of one or more particles.

• B. Minerals in earth crusts formed naturally.

• C. Non-reactive minerals are usually found in the form of compounds.

• D. Compound minerals contain only only one type of element only.