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1) Galvanic cells are also named as a. electrolytic cells b. battery cells c. Daniel cells d. John cells
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2) When zinc is plated on steel, the anode is made up of a. steel b. oxygen c. zinc d. carbon
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3) Electrolysis of brine produces a. chlorine gas b. hydrogen gas c. sodium hydroxide d. all of above
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4) A reactant containing the element that is oxidized is called a. reducing agent b. oxidizing agent c. hydrogen d. sublime
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5) By losing one or two electrons the atoms of metal are a. oxidized b. reduced c. hydrogenated d. sublimated
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6) In chromium plating, few drops of Sulphuric acid are added to the electrolyte to prevent a. oxidation b. reduction c. hydrolysis d. sublimation
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7) The electrodes used in the production of sodium metal are a. iron cathode and graphite anode b. sodium cathode and carbon anode c. aluminum cathode and fluoride anode d. aluminum cathode and sodium anode
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8) In thermal power stations, carbon atoms undergo oxidation to form a. CO2 b. CO c. H2O d. O2
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9) Electrolytes convert electricity in a. solid state b. liquid state c. gaseous state d. plasma state
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10) A concentrated aqueous solution of sodium chloride is called a. aqueous solution b. salt solution c. brine d. lemonade
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11) Rusting of iron occurs due to a. reduction b. hydrogenation c. oxidation d. sublimation
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12) The element reduced in following reaction 2Ca + O2 2CaO is a. Ca b. O2 c. CaO d. none of above
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