However- cathode is made up of mercury- Na-Hg is the main product as Na is soluble in Hg and the over potential of on mercury- In such case- on hydrolysis NaOH is obtained as main product-2Na-Hg - 2H-2O longrightarrow 2NaOH - 2Hg - H-2

Question

However- cathode is made up of mercury-  Na-Hg is the main product as Na is soluble in Hg and the over potential of on mercury- In such case- on hydrolysis NaOH is obtained as main product-2Na-Hg - 2H-2O longrightarrow 2NaOH - 2Hg - H-2

Toppr Admin · Accepted Answer

However, if cathode is made up of mercury, $$ Na-Hg$$ is the main product as $$Na$$ is soluble in $$Hg$$ and the over potential of on mercury. In such case, on hydrolysis $$NaOH$$ is obtained as main product.$$2Na-Hg + 2H_2O \longrightarrow 2NaOH + 2Hg + H_2$$

However, if cathode is made up of mercury, $$ Na-Hg$$ is the main product as $$Na$$ is soluble in $$Hg$$ and the over potential of on mercury. In such case, on hydrolysis $$NaOH$$ is obtained as main product.
$$2Na-Hg + 2H_2O \longrightarrow 2NaOH + 2Hg + H_2$$