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question_answer1) What are minerals?
question_answer2) Define ores.
question_answer3) Are all minerals ores?
question_answer4) What is gangue?
question_answer5) Define metallurgy.
question_answer6) Give name of most abundant metal in earth's crust.
question_answer7) Which transition element is present in ruby and sapphire
question_answer8) Name the ore from which Al is extracted.
question_answer9) Name the ore used for extraction of iron.
question_answer10) From which ore Cu is extracted?
question_answer11) Name the ore from which zinc is extracted.
question_answer12) What is concentration of ore?
question_answer13) Write the principle of Hydraulic washing.
question_answer14) What is collectors used in froth floatation process? Name any one collector.
question_answer15) What is the role of froth stabilizers in froth floatation process?
question_answer16) What is the role of depressants in the froth floatation process?
question_answer17) Define calcinations.
question_answer18) What is roasting?
question_answer19) What do you mean by hydrometallurgy?
question_answer20) What is slag?
question_answer21) What is the composition of copper matte formed in the extraction of copper?
question_answer22) Give names of some common reducing agents used in metallurgy.
question_answer23) What is the thermodynamic criterion for the extraction of metal?
question_answer24) How is Ellingham diagram helpful in the metallurgy process?
question_answer25) Name the furnace used in extraction of iron from its oxides.
question_answer26) Name the reagent which reduces iron oxide at lower temperature.
question_answer27) Which reagent reduces iron oxides to iron at higher temperature.
question_answer28) What is the role of limestone in the metallurgy of iron?
question_answer29) Which is purest form of iron?
question_answer30) Give name of furnace used in the extraction of copper.
question_answer31) What is blister copper? Why is it so called?
question_answer32) What is the electrochemical criterion for the extraction metals?
question_answer33) What is the role of flux in electrometallurgy?
question_answer34) Give an example of extraction based on oxidation.
question_answer35) What are the elements present in anode mud in the electro refining of metals?
question_answer36) Name the method of purification for producing semiconductor or other metals of very high purity.
question_answer37) Which metal is used as wrappers for chocolates and sweets?
question_answer38) Name the metal used in the extraction of chromium manganese from their oxides.
question_answer39) Which metal is used for electrical wires in different electrical instruments?
question_answer40) Which metal is used in protection of rusting of iron?
question_answer41) Give one use of each of the following : (i) Cast iron (ii) Wrought iron
question_answer42) Give one use of each of the following : (i) Nickel steel (ii) Chrome steel (iii) Stainless steel
question_answer43) Which metal is used in dry cell?
question_answer44) Name the main components of the following : (i) Brass (ii) German silver.
question_answer45) What is the role of cryolite in the metallurgy of Aluminiun
question_answer46) What is the percentage of carbon in pig iron?
question_answer47) Name the method used for refining of copper metal.
question_answer48) Give example of stationary and mobile phase used chromatography.
question_answer49) What percent of carbon is present in cast iron?
question_answer50) Which is the purest form of commercial iron?
question_answer51) How is pig iron different from cast iron?
question_answer52) In which temperature range coke will be reducing the
question_answer53) Reduction of orby occurs at relatively lower temperatures. Why?
question_answer54) In what condition magnesium could reduce alumina?
question_answer55) What is magnetic separation of the concentration of mental ore?
question_answer56) What is froth floatation method for the concentration of metal ore?
question_answer57) What is leaching? Give example.
question_answer58) Describe the process used in metallurgy of silver.
question_answer59) how is gold extracted from its ore?
question_answer60) What is Ellingham diagram? What ore its limitations?
question_answer61) How is wrought iron prepared?
question_answer62) How is zinc extracted from its ore?
question_answer63) How is copper obtained from low grade copper ores?
question_answer64) How is extracted?
question_answer65) What is distillation? Name the metals purified by distillation.
question_answer66) Define liquation. Name the metal purified by liquation.
question_answer67) What is electrolytic refining? Give name of a metal that can be refined by electro refining.
question_answer68) Define zone refining. What is the principle of zone refining?
question_answer69) What is vapour phase refining?
question_answer70) What is Mond's process for the purification of
question_answer71) What is van Arkel Method?
question_answer72) What is chromatography?
question_answer73) What is coupling of reactions? How is it useful in metallurgy?
question_answer74) Which process is used for the purification of Ni?
question_answer75) Name the method by which Ti, Zr are purified.
question_answer76) What is the principle of chromatography?
question_answer77) Pine oil is generally added in the froth floatation process. Explain.
question_answer78) Zinc and not copper is used for the recovery of silver from the complex \[{{[Ag{{(CN)}_{2}}]}^{-}}\]. Discuss.
question_answer79) Why partial roasting of sulphide ore is done in the metallurgy of copper?
question_answer80) Aluminium metal is generally used for the extraction of chromium and manganese from their oxide ores. Explain.
question_answer81) Graphite is used as anode and not diamond. Assign reason.
question_answer82) Magnesium oxide is often used as the lining in steel making furnace. Explain.
question_answer83) What is a flux? What is its nature? Name the substances which are formed when flux combines with gangue impurities.
question_answer84) What is thermit process? What is its utility?
question_answer85) The reduction of metal oxide is easier if the metal formed is in liquid state. Explain.
question_answer86) Reduction of \[C{{r}_{2}}{{O}_{3}}\]with Al is thermodynamically feasible; but it does not take place at room temperature. Assign reason.
question_answer87) Write one point of difference between electrolytic reduction and reduction with carbon. Give one example of each.
question_answer88) Aluminium metal is not extracted directly from Bauxite ore. The ore is first purified to give pure alumina from which aluminium is isolated by electro reduction process. Explain.
question_answer89) In moist air, copper gets corroded to produce a green layer on the surface. Assign reason.
question_answer90) Roasting of an ore of a metal usually results in the conversion of the metal sulphide into oxide. Why does the roasting of cinnabar (HgS), produce metallic mercury and not its oxide?
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