General Science Permanent hardness of water may be removed by the addition of Potassium Permanganate Alum Sodium Carbonate Lime Potassium Permanganate Alum Sodium Carbonate Lime ANSWER DOWNLOAD EXAMIANS APP
General Science Which metal pollute the air of a big city? Chromium Lead Copper Cadmium Chromium Lead Copper Cadmium ANSWER DOWNLOAD EXAMIANS APP
General Science Which of the gas is not known as green house gas? Nitrous oxide Hydrogen Methane Carbon dioxide Nitrous oxide Hydrogen Methane Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
General Science What are metal bearing rocks called? Bauxite Ores Bitumen Metalloids Bauxite Ores Bitumen Metalloids ANSWER DOWNLOAD EXAMIANS APP
General Science The two elements that are frequently used for making transistors are Niobium and Columbium Iridium and Tungsten Boron and Aluminium Silicon and Germanium Niobium and Columbium Iridium and Tungsten Boron and Aluminium Silicon and Germanium ANSWER DOWNLOAD EXAMIANS APP
General Science Amalgams are Alloys which contain mercury as one of the contents Alloys which contain carbon Alloys which have great resistance to abrasion Highly coloured alloys Alloys which contain mercury as one of the contents Alloys which contain carbon Alloys which have great resistance to abrasion Highly coloured alloys ANSWER DOWNLOAD EXAMIANS APP
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