MHT CET Chemistry Question (2026) — Solution

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Alkali metal chlorides generally do not form hydrates, with the exception of lithium chloride, which is deliquescent and crystallises as a dihydrate, LiCl 2 H _2 O . Alkaline earth metal chlorides such as MgCl _2 and BeCl _2 readily form hydrates. MgCl _2 crystallises as a hexahydrate, MgCl _2 6 H _2 O , and BeCl _2 crystallises as a tetrahydrate, BeCl _2 4 H _2 O . Caesium chloride ( CsCl ) is an alkali metal chloride that does not form hydrates and crystallises as an anhydrous salt. Therefore, CsCl does not contain water of crystallisation. Answer: CsCl