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Combined State

Lithium is th...

Question

Lithium is the only alkali metal to form a nitride directly.

Write the chemical equation.

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Solution

Lithium is the only alkali metal to form a nitride directly.
$6 L i + N_{2} \to 2 L i_{3} N$
In this behaviour, $L i$ is similar to $M g$ .

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Q. Among the s block elements, Lithium is the only metal to form a nitride directly. True or false?

Q. The alkali metal that reacts with nitrogen directly to form nitride is:

Q. Comment on each of the following observations:
(a) The mobilities of the alkali metal ions in aqueous solution are

L i^{+} < N a^{+} < K^{+} < R b^{+} < C s^{+}

.
(b) Lithium is the only alkali metal to form a nitride directly.
(c)

E^{⊖}

M^{2 +} (a q) + 2 e^{-} \to M (s)

M = C a, S r

B a

) is nearly constant.

Comment on each of the following observations:

(a) The mobilities of the alkali metal ions in aqueous solution are Li⁺ < Na⁺ < K⁺< Rb⁺ < Cs⁺

(b) Lithium is the only alkali metal to form a nitride directly.

(c) (where M = Ca, Sr or Ba) is nearly constant.

Q. "Lithium is the only metal among alkali metals that can form nitride."
Answer whether the above statement is true or false.
If true enter 1, else enter 0.

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