Answer:
3b. NH3+HNO3 → NH4(+) + NO3(-)
3c. (i), (iV) are redox ; (i), (ii) , (V) are acid-base
Step-by-step explanation:
A redox reaction is the change in charge of ions in a reaction. An easy way to identify a redox reaction is to look for Single Replacement reactions. All Simple Replacement Reactions are Redox.
In all the examples provided, there is an acid reacting with a base. They are not redox and therefore they are acid-base, as salt and water result from strong-acid/base reaction.