Question

The reaction Na + Hg + NaHg is :
(a) Oxidation
For Rcauction
(c) Precipitation
(d) None of these
(b) Reduction

Answer 1

Explanation:

d) none of these

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Answer 2

The correct answer (d) None of the above.

Explanation :

• When metallic sodium reacts exothermically with mercury and results in the formation of Sodium amalgam Na(Hg)
• Amalgam is an alloy of mercury with another metal.
• Amalgams are mixtures and not compounds, hence no chemical reaction takes place
• Because it is a physical process and not chemical the oxidation state of sodium amalgam is zero.
• Sodium amalgam is used as a reducing agent for aromatic ketones and hydrols manufacturing high-pressure sodium lamps.

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