A colourless aqueous solution on adding water and on heating gave a wh – InterviewSolution

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1.	A colourless aqueous solution on adding water and on heating gave a white precipitate. The precipitate when reacted with NH_(4)Cl and NH_(4)OH in excess resulted in dissolution of some of the precipitate and a gelatinous precipitate is obtained. What is the hydroxide formed in aqueous solution?
Answer» `ZN(OH)_(2)` `MG(OH)_(2)` `AL(OH)_(3)` `Ca(OH)_(2)`. Solution :`Al(OH)_(3)` is a gelatinous precipitate.

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