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A) \[N{{H}_{2}}N{{H}_{2}},\overset{\Theta }{\mathop{O}}\,H\]
B) \[Zn-Hg/HCl\]
C) \[Na,Liq,N{{H}_{3}}\]
D) \[NaB{{H}_{4}}\]
Correct Answer: A
Solution :
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