If the following compounds are added to water:
AlCl₃, MgCl₂, FeCl₃, BCl₃, SrCl₂, BeCl₂, BaCl₂, KCl, NaCl.
How many of these compounds cannot be recovered in their anhydrous form by heating the corresponding solution to complete dryness?

Question

If the following compounds are added to water:

AlCl₃, MgCl₂, FeCl₃, BCl₃, SrCl₂, BeCl₂, BaCl₂, KCl, NaCl.

How many of these compounds cannot be recovered in their anhydrous form by heating the corresponding solution to complete dryness?

TestHub · Accepted Answer

Compounds that hydrolyze significantly or form hydrates that decompose upon heating cannot be recovered anhydrously. These are AlCl₃, FeCl₃, BCl₃, BeCl₂, MgCl₂. Total: 5.

Chemistry - Salt Analysis Question with Solution | TestHub

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