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Column-I Column-II (i) Critical temper...

Column-I Column-II
(i) Critical temperature (a) Boiling point
(ii) Vapour pressure (b) Spherical shape of water droplet
(iii) Viscosity (c ) Liquefaction of gases
(iv) Surface tension (d) Flow of liquids.

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To solve the matching question between Column-I and Column-II, we will analyze each term in Column-I and find its corresponding match in Column-II based on the definitions and concepts of chemistry related to states of matter. ### Step-by-Step Solution: 1. **Critical Temperature (i)**: - **Definition**: The critical temperature (Tc) is the temperature above which a gas cannot be liquefied, regardless of the pressure applied. - **Match**: This concept is directly related to the **liquefaction of gases**. - **Conclusion**: Match (i) with (c). 2. **Vapour Pressure (ii)**: - **Definition**: Vapour pressure is the pressure exerted by a vapor in equilibrium with its liquid or solid phase. It is influenced by the intermolecular forces; weaker forces lead to higher vapour pressure. - **Match**: Vapour pressure is associated with the **boiling point** of a substance, as higher vapour pressure means a lower boiling point. - **Conclusion**: Match (ii) with (a). 3. **Viscosity (iii)**: - **Definition**: Viscosity is a measure of a fluid's resistance to flow. It reflects the internal friction within the liquid. - **Match**: Viscosity relates to the **flow of liquids**; higher viscosity means lower flow rate. - **Conclusion**: Match (iii) with (d). 4. **Surface Tension (iv)**: - **Definition**: Surface tension is the property of the liquid's surface that allows it to resist an external force, due to cohesive forces between liquid molecules. - **Match**: Surface tension is responsible for the **spherical shape of water droplets**. - **Conclusion**: Match (iv) with (b). ### Final Matches: - (i) Critical temperature → (c) Liquefaction of gases - (ii) Vapour pressure → (a) Boiling point - (iii) Viscosity → (d) Flow of liquids - (iv) Surface tension → (b) Spherical shape of water droplet ### Summary of Matches: - (i) → (c) - (ii) → (a) - (iii) → (d) - (iv) → (b) ---
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