, and are the respective ionization constants for the following reactions:

(a)
(b)
(c)

The relationship between , and is:

Question

,  and  are the respective ionization constants for the following reactions:

(a) 
(b) 
(c)

The relationship between ,  and  is:

Canvas Classes · Accepted Answer

Step 1 — Reaction (c) = Reaction (a) + Reaction (b):

Adding reactions (a) and (b):

Net:  which is reaction (c).

Step 2 — Rule for adding reactions:
When reactions are added, equilibrium constants are multiplied:

Verification:

Answer: Option (4) —

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