/6 Science Quiz (for 12 to 16 years old): Quiz 6 1 / 6Potassium nitrate is used in medicine fertiliser salt glass 2 / 6Which of the following was to be discovered first in the chromospheres of the sun? Krypton Xenon Helium Neon 3 / 6The most important ore of aluminium is calcite galena calamine bauxite 4 / 6Most soluble in water is common salt sulphur sugar camphor 5 / 6Permanent hardness of water may be removed by the addition of potassium permanganate lime alum sodium carbonate 6 / 6Soda water contains carbonic acid nitrous acid carbon dioxide sulphuric acid Your score is 0% Restart quiz Next quiz Please rate the quiz Send feedback By WordPress Quiz plugin
