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प्रश्न
Write chemical formula of the sulphate of Aluminium, Ammonium and Zinc.
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उत्तर
Valencies of aluminium, ammonium and zinc are 3, 1 and 2, respectively.
The valency of sulphate is 2.
Hence, chemical formulae of the sulphates of aluminium, ammonium and zinc are Al2(SO4)3, (NH4)2SO4 and ZnSO4.
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