PPSC Chemistry Part III Inorganic Chemistry Online Test With Answers

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PPSC Chemistry Part III Inorganic Chemistry Online Test

Sr. # Questions Answers Choice
1 Which of the following is not alloy of aluminium. Aluminium bronze Magnalum Duralumin Stellite
2 Which of the following property is not related to aluminum. it is silvery white metal with brilliant lusture It is a very light metal with specific gravity as 2.7 It is good conductor of heat It is the least reactive element of III Group.
3 In Serpekr's process the ore is treated with which of the following. Carbon Nitrogen gas Both A and B None of these
4 Which of the following process is not involved in the purification of bauxite. Bayer's process Serpek's process Hall's process Goldsmith's process
5 Which of the following steps in involved in the metallurgy of aluminium. Purification of bauxite Electrolytic reduction of alumina Refining of aluminum All above
6 Which of the following impurities are present with the bauxite. Silica Ferric oxide Alumina Both silica and ferric oxide
7 Aluminum is usually extracted from Bauxite Corundum Feldepar Alumite
8 Which is not an ore of aluminium. Baxuite Cryolite Monazite Corundum
9 Aluminum occurs in nature as. Native Combined form Both native and combined Free
10 Which of the following is the third most abundant element in the nature. Oxygen Sulphur Aluminum Hydrogen
11 Copper is resistant to Air Water Acid and Alkali All of the above
12 in monel metal copper is alloyed wiht which metal. Fe Mn Ni All
13 In German Silver copper is alloyed with which metal. Zn Ni Ai Zn and Ni
14 Which of the following is an alloy of copper Brass Bronze Monel metal All
15 Which of the following statements correct regarding copper. It is used in electroplating Its salts are used as insecticides Its salts are used as coloring materials All are correct
16 Which of the following state is not true with respect to copper. it is malleable and ductile It is a best conductor of heat and electricity It forms alloys easily Moltan copper absorbed carbon dioxide
17 Hydrometallurgy of copper involves extraction of copper from poor ores by which process. Dry process Wet process Both dry and wet process None of these
18 Which of the following steps are involved in the extraction of copper. Roasting Smelting Refining All
19 Copper is mainly extracted from witch of the following ore Sulphide ores Carbonate ores Oxides ores Non sulphide ores
20 The formula of copper pyrite is. CuFeS CuFeS2 Cu2FEs Cu Fe2S
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