Metals and Non-metals — 60 MCQ Quiz

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1.What is the term for the shining surface that pure metals have?

2.The ability of metals to be hammered or rolled into thin sheets is called:

3.Which two metals are considered the most malleable?

4.The ability of metals to be drawn into thin wires is known as:

5.Which metal is the most ductile, yielding a wire of about 2 km from just one gram?

6.Metals that produce a ringing sound when struck on a hard surface are described as:

7.Which two metals are the best conductors of heat?

8.Which two metals are comparatively poor conductors of heat?

9.Which non-metal is unusual because it is lustrous, unlike most other non-metals?

10.Which two metals have such low melting points that they will melt if kept on your palm?

11.Which metal exists as a liquid at room temperature?

12.Which non-metal exists as a liquid at room temperature, unlike most non-metals which are solids or gases?

13.Different physical forms in which the same element, such as carbon, can exist are called:

14.Which allotrope of carbon is the hardest natural substance known, with a very high melting and boiling point?

15.Which allotrope of carbon, unlike most non-metals, is a good conductor of electricity?

16.Alkali metals such as lithium, sodium and potassium are notable because they:

17.Most metals combine with oxygen to form:

18.When copper is heated in air, it combines with oxygen to form a black oxide known as:

19.Metal oxides which react with both acids and bases to produce salt and water are known as:

20.Which of the following is an example of an amphoteric oxide?

21.Sodium oxide and potassium oxide dissolve in water to form:

22.Why are sodium and potassium metals kept immersed in kerosene oil?

23.Which two metals react so violently with cold water that the evolved hydrogen immediately catches fire?

24.Why is calcium's reaction with cold water less violent than that of sodium?

25.Why does calcium start floating during its reaction with water?

26.Magnesium does not react with cold water, but it does react with:

27.Which metals react neither with cold nor hot water, but do react with steam to form a metal oxide and hydrogen?

28.Which of these metals do not react with water at all, not even steam?

29.Which metal, among magnesium, aluminium, zinc and iron, shows the fastest and most exothermic reaction with dilute hydrochloric acid?

30.What is the correct decreasing order of reactivity of Mg, Al, Zn and Fe with dilute acid?

31.Which common metal does NOT react with dilute hydrochloric acid at all?

32.Hydrogen gas is generally not evolved when a metal reacts with nitric acid because:

33.Which two metals react with very dilute nitric acid to evolve hydrogen gas?

34.Aqua regia is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid in what ratio?

35.Which two precious metals can be dissolved by aqua regia, even though neither acid alone can dissolve them?

36.In a displacement reaction, if metal A displaces metal B from a solution of B's salt, this shows that:

37.In the classic experiment with an iron nail placed in copper sulphate solution, the reaction shows that:

38.A list of metals arranged in order of their decreasing reactivity is called the:

39.Which metal is placed at the very top of the reactivity series, making it the most reactive?

40.Which metal is placed at the very bottom of the reactivity series, making it the least reactive?

41.Metals placed above hydrogen in the reactivity series can:

42.Compounds formed by the transfer of electrons from a metal to a non-metal are known as:

43.When a sodium atom loses its single outermost electron to form Na+, which shell becomes its new, stable outermost shell?

44.What charge does a chlorine atom acquire after gaining one electron to form a chloride ion?

45.Why do ionic compounds generally have high melting and boiling points?

46.Ionic compounds are generally soluble in water but insoluble in solvents such as:

47.In which physical state do ionic compounds fail to conduct electricity, because the ions cannot move freely?

48.Elements or compounds that occur naturally in the earth's crust are known as:

49.Minerals from which a metal can be profitably extracted are specifically called:

50.The unwanted impurities, such as soil and sand, present in a mined ore are known as:

51.Metals low in the reactivity series, such as those found in cinnabar (HgS), can usually be extracted from their ores simply by:

52.The process of converting a sulphide ore into an oxide by heating it strongly in excess air is called:

53.The process of converting a carbonate ore into an oxide by heating it strongly in limited air is called:

54.Highly reactive metals such as sodium, magnesium and aluminium, which cannot be reduced by carbon, are extracted using:

55.The highly exothermic displacement reaction between iron(III) oxide and aluminium, used to join railway tracks, is known as the:

56.In electrolytic refining of an impure metal, the impure metal is made the:

57.The brown flaky coating that iron acquires when exposed to moist air for a long time is called:

58.Silver articles turn black on exposure to air mainly because silver reacts with:

59.Copper develops a green coating over time when exposed to moist air because it forms:

60.Galvanisation protects iron and steel from rusting by coating them with a thin layer of:

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