If $\beta_1, \beta_2$ and $\beta_3$ are stepwise formation constants of $MCl, MCl_2, MCl_3$ and K is the overall formation constants of $MCl_3$, then (charges ommitted) :

Question

(a) $K = \beta_1 + \beta_2 + \beta_3$

(b) $\frac{1}{K} = \frac{1}{\beta_1} + \frac{1}{\beta_2} + \frac{1}{\beta_3}$

(c) $log K = log \beta_1 + log \beta_2 + log \beta_3$

(d) $\rho_K = log \beta_1 + log \beta_2 + log \beta_3$