EXERCISE 3D
V. K. Sally Chemistry Solutions for EXERCISE 3D
Simple step-by-step solutions to EXERCISE 3D questions of Metals And Non-Metals from Core Science Chemistry. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from EXERCISE 3D with Hints & Solutions
The electromagnetic concentration of ore is followed when:
Silver articles become black on prolonged exposure to air. This is due to the formation of
Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
(i) Au (ii) Cu
(iii) Na (iv) K
Alloys are homogeneous mixtures of a metal with a metal or non-metal. Which among the following alloys contain a non-metal as one of its constituents?
Which one of the following figures correctly describes the process of electrolytic refining?
Given below are the steps for extraction of copper from its ore. Write the reaction involved.
(a) Roasting of copper (I) sulphide
(b) Reduction of copper (I) oxide with copper (I) sulphide.
(c) Electrolytic refining
Draw a neat and well labelled diagram for electrolytic refining of copper
Give the steps involved in the extraction of metals of low and medium reactivity from their respective sulphide ores
