Question

The reaction given below represent the processes of reduction to obtain metals from their respective ores.
Arrange them in the following order.
Sodium, aluminium, zinc, chromium, iron, copper and mercury
(a) Metal oxide $+$metal sulphide $\to$ Metal $+{SO}_2$
(b) Metal oxide $+CO\to$ Metal $+{CO}_2$
(c) Metal oxide $+C\to$ Metal $+CO$
(d) Metal oxide $\to$ Metal $+O_2$
(e) Metal oxide $\underset{}{\overset{\Delta }{\to }}$ Metal $+O_2$
(f) Metal oxide $+$Aluminium $\to$ Aluminium oxide $+$ metal
(g) Metal chloride $\to$ Metal $+$ Chlorine

• A. g d c f b a e
• B. g d c f b e a
• C. a c b d f g e
• D. g d e b f a e

Answer 1

The correct option is A g d c f b a e