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9.65 C of electric current is passed thr...

`9.65 C` of electric current is passed through fused an hydrous `MgCl_2` .The magnesium metal thus obtained is completely converted into a Grignard reagent. The number of moles of Grignard reagent obtained is

A

`5 xx 10^-4`

B

`1 xx 10^-4`

C

`5 xx 10^-5`

D

`1 xx 10^-5`

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