Sure, let's analyze the pronunciation of the underlined parts in each option to identify the odd one out:

1. **A. ch**a**pter**         B. y**a**cht            C. m**a**nage            D. p**a**nel
- A. **a** in "chapter" is pronounced /æ/
- B. **a** in "yacht" is pronounced /ɒ/ (silent 'ch')
- C. **a** in "manage" is pronounced /æ/
- D. **a** in "panel" is pronounced /æ/
- **Odd one out: B. yacht** (different pronunciation)

2. **A. **e**xample**        B. f**ee**d               C. **i**nk                    D. **i**nhumane
- A. **e** in "example" is pronounced /ɪ/
- B. **ee** in "feed" is pronounced /iː/
- C. **i** in "ink" is pronounced /ɪ/
- D. **i** in "inhumane" is pronounced /ɪ/
- **Odd one out: B. feed** (different pronunciation)

3. **A. j**u**nior**             B. h**u**mour          C. st**ew**                  D. p**u**rify
- A. **u** in "junior" is pronounced /uː/
- B. **u** in "humour" is pronounced /juː/
- C. **ew** in "stew" is pronounced /uː/
- D. **u** in "purify" is pronounced /jʊ/
- **Odd one out: C. stew** (different pronunciation)

4. **A. h**a**ll**                 B. dr**o**ll               C. ch**a**lk                 D. f**o**recast
- A. **a** in "hall" is pronounced /ɔː/
- B. **o** in "droll" is pronounced /oʊ/
- C. **a** in "chalk" is pronounced /ɔː/
- D. **o** in "forecast" is pronounced /ɔː/
- **Odd one out: B. droll** (different pronunciation)

5. **A. r**e**cite**              B. r**e**concile         C. r**e**fund              D. r**e**produce
- A. **e** in "recite" is pronounced /ɪ/
- B. **e** in "reconcile" is pronounced /ɛ/
- C. **e** in "refund" is pronounced /ɪ/
- D. **e** in "reproduce" is pronounced /ɪ/
- **Odd one out: B. reconcile** (different pronunciation)

So, the odd ones out are:
1. B. yacht
2. B. feed
3. C. stew
4. B. droll
5. B. reconcile