what is the action following reagents on dihydrogen : a) sodium metal b)Cl2
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(a) When Nessler's reagent K 2 [HgI 4 ] is added to ammonia, an orange coloured complex is formed.
(b) When sodium metal is treated with ammonia, sodamide (NaNH 2 ) is formed.i.e.2Na+2NH 3 → sodamide 2NaNH 2 +H 2 ↑
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