Which of the following methods are not used to refine any metal?
$A$. Liquation $B$. Calcination $C$. Electrolysis $D$. Leaching $E$. Distillation
Choose the correct answer from the options given below.

  • A
    $B$ and $D$ only
  • B
    $A, B, D$ and $E$ only
  • C
    $B, D$ and $E$ only
  • D
    $A, C$ and $E$ only

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Similar Questions

Match the alloys in Column $A$ with their uses in Column $B$:
Column $A$ Column $B$
$(1)$ Stainless steel $(a)$ Riveting
$(2)$ Bronze $(b)$ Making artifacts
$(3)$ Nitinol $(c)$ Making coins
$(4)$ German silver $(d)$ Making musical instruments
$(e)$ Making surgical instruments

Bessemerisation is carried out for

Which alloy is used for making artifacts?

Give the correct order of initials $T$ or $F$ for following statements. Use $T$ if statement is true and $F$ if it is false.
$(i)$ $Cu$ metal is extracted from its sulphide ore by reduction of $Cu_2O$ with $FeS$.
$(ii)$ An ore of Tin containing $FeCrO_4$ is concentrated by magnetic separation method.
$(iii)$ Auto reduction process is used in the extraction of $Cu$ & $Hg$.
$(iv)$ Cassiterite and Rutile are oxide ores of the metals.

Match List-$I$ with List-$II$ and select the correct answer using the codes given below the lists :
List-$I$ List-$II$
$(a)$ van Arkel method $1$. Manufacture of caustic soda
$(b)$ Solvay process $2$. Purification of titanium
$(c)$ Cupellation $3$. Manufacture of $Na_2CO_3$
$(d)$ Poling $4$. Purification of copper
$ $ $5$. Refining of silver

Codes :

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