Ask him about how his mom is.

English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. Ask him about how his mom is.
  2. Ask him how his mom is.
  3. Ask him what his mom is like.
    Does #1 and #2 mean the same?
    Do they mean how his mom’s health is?
    Does #3 mean that how his mum look like physically?
    Please explain.
    Thanks.
2

I can’t imagine anyone using #1, especially as it has the same meaning as #2.
#2 would usually refer to health.

3 asks about her personality rather than her physical appearance in most contexts.

3

Beeesneees,
‘Does #1 and #2 mean the same?’
Is this question correct grammatically?
Instead should I write as below:
‘Do #1 and #2 mean the same?’
Thanks.

4

Do #1 and #2 mean the same.
Does #1 mean the same as #2.