Which of the following reactions is common fo | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In the extraction of lead $(Pb)$ from galena $(PbS)$,the ore is first roasted to form lead oxide $(PbO)$: $2PbS + 3O_2 	o 2PbO + 2SO_2$. Self-red

Vedclass · Accepted Answer

$PbS + \frac{3}{2} O_2 	o PbO + SO_2$

Vedclass · Answer

(A) In the extraction of lead $(Pb)$ from galena $(PbS)$,the ore is first roasted to form lead oxide $(PbO)$: $2PbS + 3O_2 	o 2PbO + 2SO_2$. Self-reduction occurs when the remaining $PbS$ reacts with the formed $PbO$: $PbS + 2PbO 	o 3Pb + SO_2$. Carbon reduction involves the reduction of $PbO$ using carbon or carbon monoxide: $PbO + C 	o Pb + CO$ or $PbO + CO 	o Pb + CO_2$. However,the roasting reaction $(PbS + \frac{3}{2} O_2 	o PbO + SO_2)$ is the essential preliminary step that provides the $PbO$ required for both subsequent reduction processes.

Which of the following reactions is common for both self-reduction and carbon reduction when $Pb$ is extracted from galena $(PbS)$?

Similar Questions

$A$ sulphide ore is first converted into its oxide before reduction. This is done because

Which of the following ores undergo calcination during the extraction process?

Write the chemical reactions taking place in the extraction of zinc from zinc blende.

The process of heating the ore strongly in excess of air so that the volatile impurities are removed and the ore is changed to oxide is known as

Select the process in which $SO_2$ is $NOT$ evolved:

Vedclass Test Series

Exam Paper Generator

Online Exam Module