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General Principles and Processes of Isolation of Metals — JEE Main & Advanced NSEC PYQs

6 previous year questions from General Principles and Processes of Isolation of Metals with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

6 questionsNSECSolutions on every page
1

P, Q, R and S are four metals whose typical reactions are given below. (I) Only Q and R react with dilute HCl to give H ₂ gas. (II) When Q is added to a solution containing the ion

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The following Ellingham diagram depicts the oxidation of ' C ', ' CO ' and ' Fe '. Which of the following is correct? I. FeO can be reduced by C below 600 K II. FeO can be reduced

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During extraction of gold, the gold ore is treated with aqueous KCN solution as shown by the equations (not balanced) below to get compound X which is further reduced by Zn to obta

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Ellingham diagrams are plots of G ^0 vs temperature which have applications in metallurgy. 2 H ₂+ O ₂=2 H ₂ O G ( ~J )=-247500+55.85 ~T (I)2 CO + O ₂=2 CO ₂ G ( ~J )=-282400+86.81

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Aluminium and copper are extracted from their oxide and sulphide ores respectively Which of the following is correct? I. Copper is extracted by the auto reduction of copper oxide b

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Consider the following statements: (i) Calcination is carried out in absence of air below the melting point of the ore (ii) Roasting and calcination are carried out in presence of

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