Metals

41. Which metal is used in the manufacture of dental fillings?
A) Gold
B) Silver
C) Mercury
D) Copper

42. Which metal is used in the manufacture of musical instruments like trumpets and trombones?
A) Copper
B) Aluminium
C) Nickel
D) Zinc

43. What is the symbol for the element lead?
A) Pb
B) Ag
C) Cu
D) Fe

44. Which metal is used in thermometers due to its low melting point?
a) Iron
b) Mercury
c) Copper
d) Zinc

45. Which of the following metals is not magnetic?
a) Iron
b) Nickel
c) Cobalt
d) Copper