A) Reaction of \[Be\] with \[{{F}_{2}}\]
B) Thermal decomposition of \[{{(N{{H}_{4}})}_{2}}Be{{F}_{4}}\]
C) Reaction of \[Be\] with \[HF\]
D) All of the above are equally effective
Correct Answer: B
Solution :
[b] Thermal decomposition of \[{{(N{{H}_{4}})}_{2}}Be{{F}_{4}}\] is the best method for preparation of\[Be{{F}_{2}}\].
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