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As per your syllabus, the oxidation number of hydrogen in a binary metal HYDRIDE (e.g. NaH, LiH, CaH₂) is which?
A+2
B0
C−1
D+1
Answer & Solution
Correct answer: C. −1
syllabus rule 4: H in metal hydrides has oxidation number −1 (rare exception); otherwise H is +1.
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