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