Which of the following is a double salt?

Blue virtriol

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Glauber's salt

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Potash aum

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Potassium ferrocyanide

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Solution

The correct option is C Potash aum
Potash alum is potassium double sulphate of aluminium . Its chemical formula is $K A l (S O_{4})_{2}$ and is commonly found as dodecahydrate form as $K A l (S O_{4})_{2} .12 H_{2} O$ .

Suggest Corrections

Similar questions

H_{2} S O_{4}

\to

+ e^{-}

E^{o} = - 0.35 V

\to

+ e^{-}

E^{o} = - 0.77 V

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