of 
from molten 
? 
of 
from molten 
?Solution:
(i) From given data, we write the equation of cell,
![\[Ca ^{2+}+2 e^{-} \rightarrow Ca\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-702bcbe87d2922db96c27ba2f2b2d860_l3.png "Rendered by QuickLaTeX.com")
Evaluating the value of electricity in terms of Faraday we have,
Electricity required to produce 
of calcium 
Therefore, electricity required to produce 
of calcium 
![\[=1 F\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-27403ab54c2f7ec6fd1b5213459d61e7_l3.png "Rendered by QuickLaTeX.com")
(ii) From given data, we write the equation of cell
![\[A l^{3+}+3 e^{-} \rightarrow Al\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-b38119f37160f52accc9355a98e78ea9_l3.png "Rendered by QuickLaTeX.com")
Evaluating the value of electricity in terms of Faraday we have,
Electricity required to produce 
of 
Therefore, electricity required to produce of 
![\[=4.44 F\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-c157b776694f71430d55fa3254443903_l3.png "Rendered by QuickLaTeX.com")