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WAEC - Chemistry (2020 - No. 34)

Which of the following hydroxides is not readily soluble in water?
NH\(_4\)OH
Ca(OH)\(_2\)
NaOH
KOH

توضيح

-The hydroxides of sodium, potassium, and ammonium are very soluble in water. The hydroxides of calcium and barium are moderately soluble. 

 

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