Metals

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51. Which of the following metals is the most malleable?
a) Copper
b) Iron
c) Aluminium
d) Gold

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52. Which of the following metals is the lightest?
a) Iron
b) Aluminium
c) Copper
d) Lead

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53. Which metal is used as a catalyst in the production of sulfuric acid?
a) Iron
b) Platinum
c) Gold
d) Copper

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54. What is the main use of tin?
a) Manufacturing of steel
b) Making batteries
c) Construction
d) Making jewelry

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55. Which of the following metals is not reactive with water?
a) Sodium
b) Magnesium
c) Copper
d) Gold

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