Question

To produce 1,4-dicyanobutane following reduction is carried out:

\[\ce{2CH2 = CH - CN + 2H+ + 2e- -> NC - (CH2)4) - CN}\]

The current ______ (in Ampere) must be used to produce 162 g of 1, 4-dicyanobutane per hour.

Options

• 80.40

• 60.30

• 20.69

• 12.05

Answer 1

To produce 1,4-dicyanobutane following reduction is carried out:

\[\ce{2CH2 = CH - CN + 2H+ + 2e- -> NC - (CH2)4) - CN}\]

The current 80.40 (in Ampere) must be used to produce 162 g of 1, 4-dicyanobutane per hour.

Explanation:

`162 = 162/108` = 1.5 moles

Electron required for 1.5 mol dicyanobutane

= 1.5 × 2 mol = 3.0 mol

∴ I × t = 3 × 96500

I = `(3 xx 96500)/3600`

I = 80.40