For which of the following metals is the self | vedclass

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

Question

(D) Self-reduction (also known as auto-reduction) is typically used for metals with low electropositivity,such as $Hg$,$Cu$,and $Pb$.$1. 	ext{ For }

Vedclass · Accepted Answer

$Fe$

Vedclass · Answer

(D) Self-reduction (also known as auto-reduction) is typically used for metals with low electropositivity,such as $Hg$,$Cu$,and $Pb$.$1. 	ext{ For } Hg: 2HgS + 3O_2$ $ightarrow 2HgO + 2SO_2; 2HgO + HgS$ $ightarrow 3Hg + SO_2$$2. 	ext{ For } Cu: 2Cu_2S + 3O_2$ $ightarrow 2Cu_2O + 2SO_2; 2Cu_2O + Cu_2S$ $ightarrow 6Cu + SO_2$$3. 	ext{ For } Pb: 2PbS + 3O_2$ $ightarrow 2PbO + 2SO_2; 2PbO + PbS$ $ightarrow 3Pb + SO_2$$Fe$ (Iron) is a more electropositive metal and is extracted by reduction with carbon (smelting) in a blast furnace,not by self-reduction.

Column $I$	Column $II$
$A$. Self reduction	$P$. Lead
$B$. Carbon reduction	$Q$. Silver
$C$. Complex formation and displacement by metal	$R$. Copper
$D$. Decomposition of iodide	$S$. Boron

For which of the following metals is the self-reduction process $NOT$ used?

Similar Questions

The flux added in the extraction of iron is

Which methods are used for the extraction of $Pb$ and $Sn$ from their respective ores?

Match the extraction processes listed in Column $I$ with metals listed in Column $II$:

Column $I$ Column $II$

$A$. Self reduction $P$. Lead

$B$. Carbon reduction $Q$. Silver

$C$. Complex formation and displacement by metal $R$. Copper

$D$. Decomposition of iodide $S$. Boron

The type of iron obtained from a blast furnace in the extraction of iron is:

In the extraction of metals from sulphide ores,the ore is first converted into an oxide before reduction,rather than reducing the sulphide ore directly,because .....

Vedclass Test Series

Exam Paper Generator

Online Exam Module