Read the given passage carefully and fill in the blanks by choosing an appropriate option. |
Oxides of ___i___ are reduced to their respective metals by heating with coke and the process is called ___ii___. Before carrying out reduction with carbon, if the calcined or roasted ore still contains infusible impurities of earthy matter, ___iii___, an additional substance, ___iv___ is added which combines with iii to form a fusible material, called ___v___. |
A)
(i)
(ii)
(iii)
(iv)
(v)
Na and K
Thermite process
Silica
\[CaO\]
\[CaC{{O}_{3}}\]
B)
(i)
(ii)
(iii)
(iv)
(v)
Fe and Zn
Smelting
Gangue
Flux
Slag
C)
(i)
(ii)
(iii)
(iv)
(v)
Al and Cu
Aluminothermy
Gangue
\[NaOH\]
\[NaAl{{O}_{2}}\]
D)
(i)
(ii)
(iii)
(iv)
(v)
\[Au\] and \[Ag\]
Smelting
Silica
\[Si{{O}_{2}}\]
Slag
Correct Answer: B
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