Write the chemical equations involved in...

Write the chemical equations involved in the extraction of lead from galena by self-reduction process.

Text Solution

Verified by Experts

Lead is mainly extracted from sulphide ore called galena. Roasting is done followed by reduction with carbon. Self-reduction finally takes place.
`2PbS + 3O_(2) rarr 2PbO + SO_(2)`
`PbS + 2O_(2) rarr PbSO_(4)`
`PbSO_(4) + PbO rarr 2Pb + 2SO_(2)`
`PbS + 2PbO rarr 3Pb + SO_(2)`.

Topper's Solved these Questions

GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS
CENGAGE CHEMISTRY|Exercise Archives (Fill In The Blanks)|4 Videos
ELECTROCHEMISTRY
CENGAGE CHEMISTRY|Exercise Archieves Subjective|35 Videos
GRIGNARD REAGENTS AND ORGANOMETALLIC REAGENTS
CENGAGE CHEMISTRY|Exercise Exercises Archives (Linked Comprehension)|1 Videos

Similar Questions

Explore conceptually related problems

Write balanced equations for "the extraction of copper from pyrites by self-reduction".

Main source of lead is galena `(PbS)`. It is converted to Pb by `:`

Self`-` reduction process is `:`

Main ore of lead is gaalena.This is mined and separated from other minerals by froth flotation.There are two methods of extracting the lead.
(i)First method involves the roasting of ore followed by reduction with coke or CO.
(ii)Second method involves the partial roasting of ore followed by self reduction.
Partial roasting of galena gives :

Write self-reduction process with balanced chemical reaction in the extraction of copper from copper matte. Why is the process called 'self-reduction'?

Why is copper extracted by self reduction? Write down the chemical reaction.

In the cynamide extraction process of silver ore argentite from, name the oxidizing and reducing agents. Write the chemical equations of the reactions involved.

कॉपर अयस्क से कॉपर के स्व-अपचयन विधि द्वारा निष्कर्षण से संबद्ध रासायनिक समीकरण लिखिये।

[" By which process "Pb" and "" Sn are extracted by "-],[" (A) Extracted carbon reduction: Self reduction "],[" (B) Self reduction: Carbon reduction "],[" (C) Electrolytic reduction: Cyanide process "],[" (D) Cynide process electrolytic reduction "]

Write the chemical equations involved in the extraction of lead from galena by self-reduction process.

Main ore of lead is galena.This is mined and separated from other minerals by froth flotation.There are two methods of extracting the lead.
(i)First method involves the roasting of ore followed by reduction
with coke or CO.
(ii)Second method involves the partial roasting of ore followed by
self reduction.
Partial roasting of galena gives :

CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Archives (Subjective)

Write the chemical equations involved in the extraction of lead from g...
01:25
|
State the conditions under which the preparation of alumina from alumi...
01:47
|
Each of the following statements is true only under some specific cond...
02:55
|
Write the balanced equations for the reaction occuring when gold is di...
02:57
|
Answer the following questions briefly. (i) What is the actual reduc...
05:28
|
Give balanced equations for the following. "Extraction of silver fro...
01:35
|
Write balanced equations for "the extraction of copper from pyrites by...
02:15
|
Give briefly the isolation of magnesium from sea water. Give equation...
02:26
|
Give reasons for the following. "Although aluminium is above hydrogen ...
00:57
|
When the ore haematite is burnt in air with coke around 2000 K along w...
03:17
|
Write the chemical reactions involved in the extraction of metallic si...
01:53
|
How is boron obtained from borax ? Give the chemical reactions involve...
02:51
|
Write down the reactions involved in the extraction of Pb. What is the...
01:56
|
A(1) and A(2) are two ores of metal M.A(1) on calcination gives a blac...
04:48
|

Home

Profile