wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What are the steps involved in extraction of moderately reactive metals from their ores? Give example.
[3 Marks]

Open in App
Solution

Moderate reactive metals are extracted from their ores by two steps:
Step 1: Moderately reactive metals like Zn, Fe and Pb are converted into their oxides by calcination or roasting.
Step 2: These metal oxides are thenreduced to metal using a suitable reducing agent like carbon, carbon monoxide or hydrogen.
[2 Marks]
Example: When zinc blende (ZnS) is roasted it forms zinc oxide and sulphur dioxide gas.
The zinc oxide produced is heated in presence of carbon to form zinc metal.
[1 mark]

flag
Suggest Corrections
thumbs-up
6
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon