![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
(a) Name the method by which aluminium metal is extracted.
(b) Give the name and chemical formula of one ore of copper.
(c) How is zinc extracted from its carbonate ore (calamine)? Explain with equations.
(a) Electrolytic reduction is the method used to extract aluminium metal.
(b) Copper glance (Cu2S) is an ore of copper.
(c) When calamine ore is heated strongly in the absence of air, it decomposes to form zinc oxide and carbon dioxide.
The equation is given as:
$ZnCO_3 → ZnO + CO_2$
The Zinc oxide is then heated with carbon and zinc metal is produced.
The equation is given as:
$ZnO + C → Zn + CO$
Advertisements