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