Question

Which one of the following will dissolve in water most readily?
(a) I₂
(b) BaCO₃
(c) KF
(d) PbI₂

Answer 1

Answer:

c)KF dissolve in water most readily

Answer 2

KF will dissolve in water most readily.

• More polar compounds are easily soluble in water since it is a polar solvent and that which dissolves, dissolves.
• Except for lithium fluoride, all alkali halides are easily soluble in water.
• The least soluble compound in water is I₂ (non-polar).
• Carbonates from Group IIA (BaCO₃) are insoluble in water.
• In comparison to hot water, PbI₂ is only weakly soluble in cold water.
• Water has the highest solubility for KF.

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