1. Centimetre (1 cm) → 3. Decimetre (10 cm) → 4. Metre (100 cm) → 2. Kilometre (1000 m.)

Correct Option: A

Ascending order of increasing size:
1. Centimetre (1 cm) → 3. Decimetre (10 cm) → 4. Metre (100 cm) → 2. Kilometre (1000 m.)

5. Mercury → 3. Venus → 4. Mars → 1. Earth → 2. Jupiter

Correct Option: B

Meaningful order of the planets:
5. Mercury → 3. Venus → 4. Mars → 1. Earth → 2. Jupiter

5. Preface → 2. Index → 4. Introduction → 1. Chapter → 3. Bibliography

Correct Option: C

Meaningful order of words:
5. Preface → 2. Index → 4. Introduction → 1. Chapter → 3. Bibliography

Ist generation — 3. Father → IInd generation —2. Husband → 1. Brother → IIIrd generation— 5. Son-in-law → 4. Son

Correct Option: A

Meaningful order of words: From given options (1) is possible. Based on generations:
Ist generation — 3. Father → IInd generation —2. Husband → 1. Brother → IIIrd generation— 5. Son-in-law → 4. Son

3. Script → 1. Artists → 2. Practice → 5. Drama → 4. Feedback

Correct Option: B

Meaningful order of words:
3. Script → 1. Artists → 2. Practice → 5. Drama → 4. Feedback