9th Class Chemistry English Medium Online Test For Full Book With Answers

9th Class Chemistry English Medium Online Test For Full Book

Sr. # Questions Answers Choice
1 Raw materials used in Solvay's process. Brine Lime stone Ammonia gas All
2 A saturated solution of sodium chloride is called. Brine Suspension Colloidal None of these
3 Which contains sufficient amount of metal? Mineral Ores Rocks Soil
4 Compound of metal exist under earth crust are called. Ore Gangue Minral None of these
5 Froth flotation process is used to concentrate. Copper ore Iron ore Chromium ore Aluminum ore
6 The process of roasting during metallurgy of copper is carried out in a special furnace called. Blast furnace Fire furnace Bessemer converter Reverberatory furnace
7 Blast furnace usually used for the metallurgy of. Iron Copper Aluminum Both a and b
8 Metallurgy involves which of the following steps? Mining and enrichment Reduction Refining and casting. All of these
9 The elements that do not conduct heat and electricity are called. Metallurgy Non metal Metalloid Alloy
10 Which one of the not metal. Copper Carbon chromium Iron
11 Process of heating the concentrated ore to high temperature in excess of air is called. Roasting Smelting Bessemerization All
12 Red hair contains compound of. Iron copper titanium Molybdenum
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