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9.65C of electric current is passed thro...

9.65C of electric current is passed through fused anhydrous magnesium chloride. The magnesium metal thus obtained is completely converted into Grignard reagen t. the number of m oles of the original reagent obtained of

A

`5xx10^(-4)`

B

`1xx10^(-4)`

C

`5xx10^(-5)`

D

`1xx10^(-5)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Mg^(2+)+2e^(-)toMg`
2F, i.e., `2xx96500C` deposit Mg=1mole
`therefore9.65C` will deposit Mg
`=(1)/(2xx96500)xx9.65=5xx10^(-5)` mole
`RX xx MgtoRMgX`
1 mole of Mg forms G.R.=1 mole
`therefore5xx10^(-5)` of Mg will form G.R.
`=5xx10^(-5)` mole.
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