/6 Science Quiz (for 12 to 16 years old): Quiz 10 1 / 6Which of the following is the lightest metal? Lithium Mercury Lead Silver 2 / 6Bell metal is an alloy of zinc and copper nickel and copper brass and nickel tin and copper 3 / 6The main constituents of pearls are ammonium sulphate and sodium carbonate calcium oxide and ammonium chloride calcium carbonate and magnesium carbonate aragonite and conchiolin 4 / 6Amalgams are alloys which contain mercury as one of the contents alloys which have great resistance to abrasion highly coloured alloys alloys which contain carbon 5 / 6Which of the following is not an isotope of hydrogen? Tritium Yttrium Protium Deuterium 6 / 6Water is a good solvent of ionic salts because It has a high specific heat It has a high boiling point It has a high dipole moment It has no colour Your score is 0% Restart quiz Next quiz Please rate the quiz Send feedback By WordPress Quiz plugin