Match items of column-I with the items of column-II and assign the correct code: Column I Column II ( a ) Cyanide process ( i ) Ultrapure Ge ( b ) Froth floatation process ( ii ) Dressing of ZnS ( c ) Electrolytic

NEET 2016

Exam: NEET
Year: 2016
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

NEET 2016 · Chemistry · General Principles and Processes of Isolation of Metals

Match items of column-I with the items of column-II and assign the...

Match items of column-I with the items of column-II and assign the correct code:

	Column I		Column II
$( a )$	Cyanide process	$( i )$	Ultrapure $Ge$
$( b )$	Froth floatation process	$( ii )$	Dressing of $ZnS$
$( c )$	Electrolytic reduction	$( iii )$	Extraction of $Al$
$( d )$	Zone refining	$( iv )$	Extraction of $Au$
		$( v )$	Purification of $Ni$

Options

A $\begin{cases}\left(a\right) & \left(b\right) & \left(c\right) \\ \left(iv\right) & \left(ii\right) & \left(iii\right)\end{cases}$ $\begin{array}{ll}\left(d\right) \\ \left(i\right)\end{array}$ $$
B $\begin{cases}\left(a\right) & \left(b\right) & \left(c\right) \\ \left(ii\right) & \left(iii\right) & \left(i\right)\end{cases}$ $\begin{array}{ll}\left(d\right) \\ \left(v\right)\end{array}$ $$
C $\begin{cases}\left(a\right) & \left(b\right) & \left(c\right) \\ \left(i\right) & \left(ii\right) & \left(iii\right)\end{cases}$ $\begin{array}{ll}\left(d\right) \\ \left(iv\right)\end{array}$ $$
D $\begin{cases}\left(a\right) & \left(b\right) & \left(c\right) \\ \left(iii\right) & \left(iv\right) & \left(v\right)\end{cases}$ $\begin{array}{ll}\left(d\right) \\ \left(i\right)\end{array}$ $$

Correct answer

A. $\begin{cases}\left(a\right) & \left(b\right) & \left(c\right) \\ \left(iv\right) & \left(ii\right) & \left(iii\right)\end{cases}$ $\begin{array}{ll}\left(d\right) \\ \left(i\right)\end{array}$ $$

Step-by-step solution

a. The cyanide process is used to extract

Ag

and

Au

in hydrometallurgy.

b. Froth floatation process is used for the dressing of sulfide ores.

c] The electrolytic reduction is used to extract

Al

.

d] The zone refining process is used for obtaining ultrapure

Ge

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