Question
Consider three metal chlorides x , y and z, where x is water soluble at room temperature, y is sparingly soluble in water at room temperature and z is soluble in hot water. x , y and z are respectively
JEE Main
Chemistry
Practical Chemistry
2026
JEE Main 2026 (24 January Shift 1)
JEE Main Chemistry Question (2026) — Solution
Options
- A. CuCl _ 2 , AgCl and PbCl _ 2
- B. AlCl _ 3 , PbCl _ 2 and BaCl _ 2
- C. MgCl _ 2 , AgCl and AlCl _ 3
- D. AgCl , Hg _ 2 Cl _ 2 and PbCl _ 2
Answer
A. CuCl _ 2 , AgCl and PbCl _ 2
Step-by-step solution
Metal chloride solubility characteristics: x must be water soluble at room temperature, y must be sparingly soluble at room temperature, and z must be soluble in hot water but not in cold water. CuCl₂ is highly soluble in water (x). AgCl is notoriously insoluble in water and sparingly soluble at any temperature, classifying it as sparingly soluble (y). PbCl₂ exhibits unusual solubility behavior—it is sparingly soluble in cold water but its solubility increases with temperature, making it soluble in hot water (z). This combination perfectly matches all three criteria.
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