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Which is false regarding ionic hydrides ? 

Option: 1

Alkali hydrides generally have rock salt structure 


Option: 2

They have high heats of formation 


Option: 3

Their density is higher than the metals they are formed of 


Option: 4

They don't undergo oxidation -reduction reaction with water 


Answers (1)

best_answer

Ionic hydrides undergo oxidation-reduction reaction with water to produce hydrogen 

Li H + H_2O \rightarrow H_2 + LiOH

Therefore, option(4) is correct.

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Pankaj

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