JEE Main 2019 — General Principles and Processes of Isolation of Metals Question with Solution
JEE Main 2019 (12 Apr Shift 2)
Question
The correct statement is:
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Correct answer
Cleaching of bauxite using concentrated solution gives sodium aluminate and sodium silicate.
Step-by-step explanation
(1) During leaching when bauxite is treated with concentrated then sodium aluminate and sodium silicate is formed in the soluble form, whereas is precipitated
(2) The blistered appearance of copper during the metallurgical process is due to evolution of
(3) Cast iron is obtained from pig iron.
(4) Hall-Heroult process is used for production of only aluminium.
(2) The blistered appearance of copper during the metallurgical process is due to evolution of
(3) Cast iron is obtained from pig iron.
(4) Hall-Heroult process is used for production of only aluminium.
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This is a previous-year question from JEE Main 2019, covering the General Principles and Processes of Isolation of Metals chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.