Consider the following statements :
- Addition of salt to pure water increases the boiling point of water and decreases the freezing point of water.
- When methyl alcohol is added to water boiling point of water decreases.
Which of the above statements is/are correct?
Detailed Explanation:
Salt (NaCl) is a non-volatile solute that causes boiling point elevation and freezing point depression through colligative properties—saltwater boils at a higher temperature and freezes at a lower temperature than pure water.
Methyl alcohol (methanol) is a volatile solute with higher vapor pressure than water. When added to water, it increases the overall vapor pressure of the mixture, causing the boiling point to decrease.
Therefore, both statements correctly describe opposite effects due to different solute types, making Option 3 the correct answer.
Question 3 of 3 Chemical Reactions
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