(D) The process of refining blister copper using green logs of wood is known as $poling$. Green logs of wood release hydrocarbon gases (like $CH_4$) u

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

To reduce the metallic oxide impurities with hydrocarbon gases liberated from the wood

(D) The process of refining blister copper using green logs of wood is known as $poling$. Green logs of wood release hydrocarbon gases (like $CH_4$) upon heating. These gases reduce the cuprous oxide $(Cu_2O)$ impurities present in the blister copper back to metallic copper $(Cu)$. The reaction is: $3Cu_2O + CH_4 \to 6Cu + 2H_2O + CO$.

Class 12 Chemistry General Principles and Processes of Isolation of Elements Refining of crude Metal

Difficult

In order to refine "blister copper",it is melted in a furnace and stirred with green logs of wood. The purpose is:

A
To expel the dissolved gases in blister copper
B
To bring the impurities to surface and oxidize them
C
To increase the carbon content of copper
D
To reduce the metallic oxide impurities with hydrocarbon gases liberated from the wood

Explore More

Browse All

Question Bank

All Subjects

Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Refining of crude Metal

The formation of $Ni(CO)_4$ and its subsequent decomposition into $Ni$ and $CO$ forms the basis of the Mond process.
$Ni + 4CO$ $\xrightarrow{T_1} Ni(CO)_4$ $\xrightarrow{T_2} Ni + 4CO$
What are the values of $T_1$ and $T_2$?

Medium

View Solution

Zone refining is a technique used primarily for which one of the following processes?

Easy

View Solution

Identify the appropriate electrodes for the electrolytic refining of a copper sample containing zinc as an impurity.

Easy

View Solution

During the process of electrolytic refining of copper,some metals present as impurity settle as 'anode mud'. These are

DifficultAIEEE 2005

View Solution

Which method of purification is represented by the following equation?
$Ti_{(s)} + 2I_{2(g)}$ $\xrightarrow{523 \ K} TiI_{4(g)}$ $\xrightarrow{1700 \ K} Ti_{(s)} + 2I_{2(g)}$

EasyAIEEE 2012

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

In order to refine "blister copper",it is melted in a furnace and stirred with green logs of wood. The purpose is:

Similar Questions

The formation of $Ni(CO)_4$ and its subsequent decomposition into $Ni$ and $CO$ forms the basis of the Mond process.$Ni + 4CO$ $\xrightarrow{T_1} Ni(CO)_4$ $\xrightarrow{T_2} Ni + 4CO$What are the values of $T_1$ and $T_2$?

Zone refining is a technique used primarily for which one of the following processes?

Identify the appropriate electrodes for the electrolytic refining of a copper sample containing zinc as an impurity.

During the process of electrolytic refining of copper,some metals present as impurity settle as 'anode mud'. These are

Which method of purification is represented by the following equation?$Ti_{(s)} + 2I_{2(g)}$ $\xrightarrow{523 \ K} TiI_{4(g)}$ $\xrightarrow{1700 \ K} Ti_{(s)} + 2I_{2(g)}$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The formation of $Ni(CO)_4$ and its subsequent decomposition into $Ni$ and $CO$ forms the basis of the Mond process.
$Ni + 4CO$ $\xrightarrow{T_1} Ni(CO)_4$ $\xrightarrow{T_2} Ni + 4CO$
What are the values of $T_1$ and $T_2$?

Which method of purification is represented by the following equation?
$Ti_{(s)} + 2I_{2(g)}$ $\xrightarrow{523 \ K} TiI_{4(g)}$ $\xrightarrow{1700 \ K} Ti_{(s)} + 2I_{2(g)}$