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Why mgh2 and alh3 are deficient hydrides and ch4 , sih4 are sufficient hydrides ?

Why mgh2 and alh3 are deficient hydrides and ch4 , sih4 are sufficient hydrides ? 
 
 

Grade:12th pass

1 Answers

Mahima Kanawat
1010 Points
5 years ago
Dear student
In CH4 and SiH4, octet of central atom is complete but in MgH2 and AlH, octet of central atom is not complete.
WITH REGARDS 
MAHIMA 
ASKIITIANS FORUM EXPERT 

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