Description : The least electropositive metal among the following is
Last Answer : The least electropositive metal among the following is A. Au B. Mg C. Al D. Zn
Description : Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation by a more electropositive metal. Reason : Copp
Last Answer : Assertion : Hydrometallurgy involves dissolving the ore in a suitable reagent followed by precipitation ... : Copper is extracted by hydrometallurgy.
Description : The most electropositive metal are isolated from their ores by
Last Answer : The most electropositive metal are isolated from their ores by A. High temperature reduction ... decomposition D. Electrolysis of fused ionic salts
Description : Give reason: a) Metals are electropositive. b) Non-metals are electronegative. c) Even though hydrogen is a non-metal, it is electropositive. d) Sodium is electropositive.
Last Answer : a) Metals are electropositive. Electropositive element has the tendency to lose electrons and form cation.Metals are electron donors. Hence they are electropositive. b) Non-metals are ... is electropositive because donates electrons from last orbit to another element and becomes electropositive.
Description : The most electropositive element among the following is (a) Na (b) Ca (c) K (d) Cs
Last Answer : Ans:(d)
Description : The most electropositive elements among the following is : (1) Cs (2) Ca (3) Na (4) Br
Last Answer : (1) Cs Explanation: The alkali metals are the most electropositive. Cesium is the most electropositive of the stable elements.Francium, while unstable, is theoretically the most electropositive element.
Description : Highly electropositive metals can not be extracted by carbon reduction process because these :
Last Answer : Highly electropositive metals can not be extracted by carbon reduction process because these : A. Metals ... D. Loss of metal is more by vaporisation
Description : Most electropositive elements?
Last Answer : Francium or Caesium
Description : How the most electropositive metals are isolated from their ores ?
Last Answer : Ans. The most electropositive metals are isolated from their ores by electrolysis of fused ionic salts.