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Atoms, Molecules and Radicals — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYAtoms, Molecules and Radicals1 Mark
Question
Write the molecular formulae of Iron (III) sulphide:
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Answer

Iron (III) sulphide $- Fe _2\left( SO _4\right)_3$

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