'bound'

English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. She got on a plane bound for Delhi.
    Is here ‘bound’ a past participle of bind?
  2. He’s bound by a contract.
  3. She is bound to be elected our club president.
  4. He will be bound to suffer for his past mistakes.
    Is ‘bound’ an adjective in these sentences?
    Please clarify.
  5. He’s obligated by a contract.
    Is this sentence OK?
    Thanks.
2

1, No, it isn’t.
See under definition 4.
oxfordlearnersdictionaries.c … sh/bound_1

2-4 See the link above

5, I suppose so but ‘bound’ would be the usual expectation.

Using a dictionary would have helped you answer all those questions for yourself.