Incorrect match is

English

Gujarati

Hindi

General Principles and processes of Isolation of Elements

medium

Incorrect match is

A

Purification of $Al$ metal : Baeyer's method

B

Polling : Reduction of $Cu_2O$

C

$FeCr_2O_4$ (chromite ore) : $NaOH/Na_2CO_3$

D

$Ag$ : Mac Arthur cyanide process

Solution

Purification of $Al$ metal : Hoop's Method

Standard 12

Chemistry

Share

Similar Questions

High purity copper metal is obtained by

easy

Blister copper is

normal

Assertion : Extraction of iron metal from iron oxide ore is carried out by heating with coke.

Reason : The reaction,

$Fe_2O_3 (s)\to Fe(s) + 3 / 2O_2 (g)$ is a spontaneous process.

hard

(AIIMS-2005)

When $ZnS$ and $PbS$ minerals are present together, then $NaCN$ is added to separate them in the froth floatation process as a depressant, because

normal

The Mond process is used for the

medium

(JEE MAIN-2019)