For the complex `ML_(2) ` stepwise formation constants for
`M+L hArr ML `
`M+L hArr ML_(2)`
are 4 and 3 . Hence overcell stability constant for ` M +2L hArr ML_(2)` is

Options

A. `12`
B. `7`
C. `1.33`
D. `0.75`

Answer

A

Explanation

`M+L hArr ML, k _(1) =([ML])/([M][L])=4`
`ML+L hArr ML _(2 ),K _(2)=([ML_(2)])/([ML][L])=3`
`M+2L hArr ML_(2), K_(3)`
`K_(3)=([ML_(2)])/([M][L]^(2))=K_(1)k_(2)=12`