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Lithium reacts with hydrogen azide to produceA. `Li_(3)N`B. `LiN_(2)`C. `LiN_(3)`D. `Li_(3)N_(2)` |
Answer» Correct Answer - 3 Hydrogen azide `HN_(3)` (formerly called hydrazoic acid)dissociates slightly in aqueous solution `(pK_(a)~=5)` .It behaves as a week acid (of similar strength to acetic acid). It reacts with electropositive metals, forming salts called azides, but unlike other acid + metal reactions, no hydrogen is evolved: `6HN_(3)+4Lirarr4LiN_(3)rarrunderset("Lithium azide")(4LiN_(3))+2NH_(3)+2N_(2)` |
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