Question

he was appointed ___ the post(to/for/of)​

Answer 1

He was appointed to the post.

Use of correct prepositions

• Prepositions are small English words used as connectors and linkers in sentences.
• There are more than 150 prepositions used in English grammar.
• Using the wrong preposition will make the sentence incorrect.
• Some common prepositions are: to, in, into, of, off, upon, above, etc.

Thus, 'to' is the right preposition for this sentence.