Assertion: $K_4\left[Fe{\left(CN\right)}_6\right]\stackrel{ }{\to }F{e}^{3+}+C{O}_2+N{O}_3^{-}$ ; equivalent weight of  $K_4\left[Fe{\left(CN\right)}_6\right]$$=\frac{M}{61}$

(M=molecular weight)
Reason: $K_4\left[Fe{\left(CN\right)}_6\right]\stackrel{ }{\to }F{e}^{3+}+C{O}_2+N{O}_3^{-};$ n-factor for  $K_4\left[Fe{\left(CN\right)}_6\right]$  is 61

Assertion is false & Reason is true

Assertion is true & Reason is false

Both Assertion & Reason are correct , Reason is not the correct explanation of Assertion

Both Assertion & Reason are correct , Reason is the correct explanation of Assertion