KCET2011ChemistryElectrochemistry
9.65 C of electric current is passed through fused alhydrous MgCl ₂ . The magnesium metal thus obtained is completely converted into a Grignard reagent. The number of moles of Grignard reagent obtained is
Options
- A5 10⁻⁴
- B1 10⁻⁴
- C5 10⁻⁵
- D1 10⁻⁵
Correct answer
C. 5 10⁻⁵
Step-by-step solution
96500 Coulombs of electric current deposits =12 of magnesium. 9.65 Coulombs of electric current deposits aligned &= 9.65 12 96500 &=1.2 10⁻³ ~g of magnesium aligned The number of moles of Grignard reagent obtained is = 1.2 10⁻³ 24 =0.05 10⁻³=5 10⁻⁵