AB is
Chord
of the circle with centre o
angle aob = 70 degree
AB=6cm . Find diameter of the circle
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Introduction
Understanding the Terms Minerals & Ores
Occurrence of Metals
Extraction & Isolation of Metals
Extraction of Crude Metals from Concentrated Ore
Extraction of copper from cuprous oxide [copper [I] oxide] &
Extraction of Zinc from Zinc Oxide
Electrochemical Principles of Metallurgy
Refining
Uses of Aluminium, Copper, Zinc & Iron
Class 12 Chemistry Isolation of ElementsExtraction of Crude Metals from Concentrated Ore
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