Question

Give the difference between: liquation and hydraulic washing.electrolytic reduction and reduction with carbon.

Answer 1

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Answer 2

Answer:

The difference between: liquation and hydraulic washing is as follows:  

Liquation:

• The liquification process is mainly use for the purification of metals which have low melting points.
• The pure metal flows down the slope, leaving the impurities behind.

Hydraulic washing:

• Hydraulic washing is mainly used for the concentration of magnetic ores.
• The impurities are left behind by the washed away from the ore.

The differences between electrolytic reduction and reduction with carbon is as follows:

Reduction with carbon:

• In this process, carbon is used as a reducing agent.
• Metals like Zn,Fe, Cu,Ni reduce by the carbon.

The chemical reaction is as follows

$\mathrm{ZnO}+\mathrm{C} \rightarrow \mathrm{Zn}+\mathrm{CO}$

Electrolytic reduction:

• In this process, electrolysis process is a reduction.
• Al,Na,K,Mg and Ca  metals reduce by this process.

$A l^{3+}+3 e^{-} \stackrel{\text { Electrolytic reduction }}{\longrightarrow} A l$.