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Which of the following is true with regards to LiH\: \: and\: \: CaH_2  ?

Option: 1

O.N.(Ca)>O.N.(Li)


Option: 2

O.N.(Li)=O.N.(Ca)


Option: 3

O.N.(Li)>O.N.(Ca)


Option: 4

None


Answers (1)

best_answer

Rules for Oxidation Number -

The oxidation number of hydrogen is +1, except when it is bonded to metals in binary compounds (that is compounds containing two elements)

- wherein

e.g. LiH, NaH, and CaH2 its oxidation number is -1.

 

 O.N.(Ca)+2O.N.(H)= 0

O.N.(Ca)=+2

Also, O.N.(Li)=+1

 

Posted by

Ritika Kankaria

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