UncategorizedState True or False.The action of water on magnesium nitride is .

State True or False.


The action of water on magnesium nitride is .


  1. A
    True
  2. B
    False 

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    Solution:

    The given statement is true.
    Concept: Metal nitrides decompose to metal hydroxide and ammonia on treatment with water.
    Nitride is an ion of nitrogen in the -3 oxidation state. Magnesium hydroxide decomposes to its hydroxide and ammonia. This is a common reaction for metal nitrides.
    The reaction is as follows;
    The can be identified by its solubility in sodium hydroxide. Both magnesium nitride and hydroxide are soluble in NaOH . While lead hydroxide dissolves in NaOH . This is used to distinguish between them.
    The ammonia produced can be identified by treating it with HCl . To the gas produced, a glass rod dipped in HCl is shown. which produces dense white vapours of on this test.
    Hence, the correct answer is option 1.
     
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