Question

Which statement is incorrect about Na in liquid NH₃?
a) It is an oxidizing agent
b) It is a reducing agent
c)It gradually liberates H₂
d) It gives a blue solution when dilute
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Answer 1

Answer:

first three sentence are na in liquid nh

Answer 2

Answer: (a) statement is incorrect.

Explanation:

In liquid ammonia $(NH_{3})$ solution, sodium $(Na)$ dissolves to generate a blue solution that is characteristic of a solvated electron in liquid ammonia, which is conducting in nature because of ammoniated electrons.

$M + (x+y) NH_{3}$  →  $[M (NH_{3} )_{x}]^{+} + [e ( (NH_{3} )_{y}]^{-}$

The solvated electrons are referred to as ammoniated electrons which gives the sodium solution in liquid ammonia reducing characteristics.

At room temperature, where ammonia is still a liquid, the blue solutions are only moderately unstable. When standing, it gradually releases hydrogen.

Therefore the options (b), (c) and (d) are correct, only (a) is incorrect.

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