Concentrated H2 SO4 displaces hydrogen chloride from...

Concentrated $\mathrm{H}_{2} \mathrm{SO}_{4}$ displaces hydrogen chloride from chloride s because
(a) Sulphates are more soluble than chlorides
(b) HCl is a gas while $\mathrm{H}_{2} \mathrm{SO}_{4}$ is a liquid
(c) It is a stronger acid
(d) Sulphates are less soluble than chlorides

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Key Concepts

Acid Strength

Acid strength refers to the extent to which an acid can donate protons (H? ions) in solution. Strong acids, which dissociate completely in water, can displace weaker acids from their compounds because their high proton concentration forces the reaction equilibrium toward formation of the stronger acid's products. This concept is fundamental in understanding acid-base reactions and displacement processes in chemistry.

Solubility and Precipitation in Displacement Reactions

Solubility is the ability of a substance to dissolve in a solvent, and in many displacement reactions, the relative solubility of the products plays a crucial role. When a reaction produces an insoluble compound, or one with low solubility, the precipitate is removed from the solution. This removal shifts the equilibrium toward the formation of more products, driving the reaction forward. Understanding how solubility affects reaction outcomes is key in predicting and controlling chemical processes.

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