Science Practice Quiz 34

Q1.In the experiment to investigate the conditions under which iron rusts, what were the conditions present in test tube A?

A. Only dry air B. Only water C. Both air and water D. Boiled distilled water and oil

Q2.In the experiment investigating iron rusting, what was the purpose of adding about 1 mL of oil to boiled distilled water in test tube B?

A. To speed up the rusting process. B. To prevent the air from dissolving in the water. C. To absorb moisture from the air. D. To provide a nutrient for the iron nails.

Q3.In the experiment investigating iron rusting, what was the role of anhydrous calcium chloride in test tube C?

A. To provide moisture for rusting. B. To prevent the air from dissolving in water. C. To absorb moisture from the air. D. To react with the iron nails.

Q4.Based on the experiment described, what are the necessary conditions for iron articles to rust?

A. Exposure to dry air only. B. Exposure to water only. C. Exposure to both air and water. D. Exposure to oil and boiled water.

Q5.Which of the following metals is a liquid at room temperature?

A. Zinc B. Copper C. Magnesium D. Mercury

Q6.Which of the following oxides are known as amphoteric oxides?

A. Copper oxide and Magnesium oxide B. Zinc oxide and Aluminium oxide C. Iron oxide and Copper oxide D. Sodium oxide and Potassium oxide

Q7.What is the term for a list of common metals arranged in order of their decreasing reactivity?

A. Periodic table B. Reactivity index C. Activity series D. Electrochemical series

Q8.The process of extracting metals from their ores and then refining them for use is known as what?

A. Corrosion B. Alloying C. Metallurgy D. Displacement

Q9.What is an alloy defined as, according to the provided text?

A. A compound formed by a metal and a non-metal. B. A heterogeneous mixture of two or more metals. C. A homogeneous mixture of two or more metals, or a metal and a non-metal. D. A pure metallic element used in industry.

Q10.What phenomenon describes the corrosion of the surface of some metals, such as iron, when exposed to moist air for a long period?

A. Metallurgy B. Amphoterism C. Displacement reaction D. Corrosion

Sign in with Email

Science Practice Quiz 34