The boiling point of alcohol are .... Than corresponding thiols.

Options

A. More
B. same
C. Either of these
D. Less

Answer

**Step-by-Step Solution:**

1. **Understanding the Compounds**:
- We are comparing two types of compounds: alcohols (ROH) and thiols (RSH).
- Alcohols contain a hydroxyl group (-OH), while thiols contain a sulfhydryl group (-SH).

2. **Hydrogen Bonding in Alcohols**:
- Alcohols can form hydrogen bonds due to the presence of the highly electronegative oxygen atom.
- The hydrogen atom in the -OH group of alcohols can form strong hydrogen bonds with other alcohol molecules.

3. **Lack of Hydrogen Bonding in Thiols**:
- Thiols do not form hydrogen bonds because the sulfur atom is larger and less electronegative than oxygen.
- While sulfur can participate in dipole-dipole interactions, it does not meet the criteria for hydrogen bonding due to its larger size.

4. **Intermolecular Forces Comparison**:
- The primary intermolecular force in alcohols is hydrogen bonding, which is a strong interaction.
- In contrast, thiols primarily exhibit dipole-dipole interactions, which are weaker than hydrogen bonds.

5. **Boiling Point Implications**:
- Because alcohols have stronger intermolecular forces (hydrogen bonding), they require more energy (heat) to break these interactions during boiling.
- Therefore, alcohols will have higher boiling points compared to thiols.

6. **Conclusion**:
- The boiling point of alcohols is **higher** than that of corresponding thiols due to the presence of stronger hydrogen bonding in alcohols compared to the weaker dipole-dipole interactions in thiols.

**Final Answer**: The boiling point of alcohols is **higher** than corresponding thiols.

---