The equation which is balanced and represents the correct product(s) is:

Options

A. `[Mg(H_(2)O)_(6)]^(2+)+(EDTA)^(4-)overset(ExcessNaOH)rarr[Mg(EDTA)]^(2+) +6H_(2)O`
B. `CuSO_(4)+4KCNrarrK_(2)[Cu(CN)_(4)]+K_(2)SO_(4)`
C. `Li_(2)O+2KCIrarr2LiCI +K_(2)O`
D. `[CuCI(NH_(3))_(5)]^(o+)+5H^(o+)rarrCo^(2+) +5NH_(4)^(o+) +CI^(Θ)`

Answer

d

Explanation

Equation 1 is is not balanced w.r.t charge
Equation `2givesK_(3)[Cu(CN)_(4)]` as product
Equation 3 reaction is unfavourable in the forward direction
`(K_(2)O` is unstable while `Li_(2)O` is stable
`Equation 4 is correct and balanced .