1.

Which of the following is known as pseudoalum?

Answer»

`KMN(SO_(4))_(2).12H_(2)O`
`KCr(SO_(4))_(2).12H_(2)O`
`NH_(4)Fe(SO_(4))_(2).12H_(2)O`
`FeSO_(4).Al_(2)(SO_(4))_(3).24H_(2)O`

Solution :`FeSO_(4).Al_(2)(SO_(4)).24H_(2)O` is a pseudo alum.


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