Fill in the blanks with appropriate words.
Azeotropic mixtures boil without change in their ___.Azeotropic mixtures exist in solutions showing ___ or ____ deviations. ____ solutions do not form azeotropes. Van't Hoff factor for an electrolyte is ___ than 1.

Options

A. colour, positive, negative , non-ideal, smaller
B. properties , positive , negative , ideal , smaller
C. boiling point, positive , negative , non-ideal , lesser
D. composition , positive , negative , ideal , greater

Answer

To fill in the blanks correctly, let’s analyze each part of the question step by step.

1. **Azeotropic mixtures boil without change in their ___**:
- Azeotropic mixtures are characterized by the fact that they maintain a constant composition during boiling. Therefore, the blank should be filled with "composition".

2. **Azeotropic mixtures exist in solutions showing ___ or ___ deviations**:
- Azeotropic mixtures typically arise from non-ideal solutions that exhibit either positive or negative deviations from Raoult's law. Thus, the blanks should be filled with "positive" and "negative".

3. **___ solutions do not form azeotropes**:
- Ideal solutions are those that follow Raoult's law perfectly and do not exhibit any deviation. Therefore, the blank should be filled with "Ideal".

4. **Van't Hoff factor for an electrolyte is ___ than 1**:
- The Van't Hoff factor (i) for an electrolyte is usually greater than 1 because electrolytes dissociate into ions in solution. Thus, the blank should be filled with "greater".

Putting it all together, we have:

- Azeotropic mixtures boil without change in their **composition**.
- Azeotropic mixtures exist in solutions showing **positive** or **negative** deviations.
- **Ideal** solutions do not form azeotropes.
- Van't Hoff factor for an electrolyte is **greater** than 1.

### Final Answers:
1. composition
2. positive
3. negative
4. Ideal
5. greater