Assertion : Lead,tin and bismuth are purified | vedclass

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Question

(A) The liquation method is used for the purification of metals that have low melting points $(m.p.)$ compared to their impurities.Lead $(Pb)$,tin $(S

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) The liquation method is used for the purification of metals that have low melting points $(m.p.)$ compared to their impurities.Lead $(Pb)$,tin $(Sn)$,and bismuth $(Bi)$ are metals with relatively low melting points.In this process,the crude metal is placed on a sloping hearth and heated.The metal melts and flows down,leaving behind the infusible impurities.Thus,both the Assertion and the Reason are correct,and the Reason correctly explains why these metals are purified by liquation.

List-$I$ (Process)	List-$II$ (Metal)
$A$. Hall-Heroult process	$I$. $Ti$
$B$. Mond process	$II$. $In$
$C$. van-Arkel process	$III$. $Al$
$D$. Zone refining process	$IV$. $Ni$

Column $-I$	Column $-II$
$(i)$ Iron and copper	$(P)$ Poling
$(ii)$ Zirconium and Titanium	$(Q)$ Bessemerisation
$(iii)$ Lead and Tin	$(R)$ Van Arkel
$(iv)$ Copper and Tin	$(S)$ Liquation

Assertion : Lead,tin and bismuth are purified by liquation method.
Reason : Lead,tin and bismuth have low $m.p.$ as compared to impurities.

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Match the following:
List-$I$ (Process) List-$II$ (Metal)
$A$. Hall-Heroult process $I$. $Ti$
$B$. Mond process $II$. $In$
$C$. van-Arkel process $III$. $Al$
$D$. Zone refining process $IV$. $Ni$

The correct answer is:

Match Column $-I$ with Column $-II$ and select the correct answer using the codes given below.

Column $-I$ Column $-II$

$(i)$ Iron and copper $(P)$ Poling

$(ii)$ Zirconium and Titanium $(Q)$ Bessemerisation

$(iii)$ Lead and Tin $(R)$ Van Arkel

$(iv)$ Copper and Tin $(S)$ Liquation

$TiI_{4}$ on heating gives

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Assertion : Lead,tin and bismuth are purified by liquation method.Reason : Lead,tin and bismuth have low $m.p.$ as compared to impurities.