To determine the order of the given words as they would appear in an English dictionary, we need to analyze each word alphabetically from the beginning until we can distinguish their positions relative to each other.

Let us examine the list of words:

1. CHATTER
2. CHASTISE
3. CHARTER
4. CHANT
5. CHAIR

Now, we will sort these words by examining them letter by letter:

1. First, compare the initial letters (CHA) in each word since they are identical across all words in this case. Hence, we must extend to subsequent letters to find any difference.
2. Examine the fourth letter:
   - CHAIR has 'I'
   - CHANT has 'N'
   - CHARTER has 'R'
   - CHASTISE has 'S'
   - CHATTER has an extra 'T'
   
3. Based on the fourth letter, the order of words will be:
   - CHAIR (comes first due to 'I' which appears before 'N', 'R', 'S', and the second 'T')
   - CHANT (next with 'N')
   - CHARTER (then 'R')
   - CHASTISE (next with 'S')
   - CHATTER (last due to the second 'T')
   

Therefore, the correct order of the words as they would appear in an English dictionary is:

1. CHAIR
2. CHANT
3. CHARTER
4. CHASTISE
5. CHATTER

Thus, the correct option is: 5, 4, 3, 2, 1.