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Atoms and Molecules — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceAtoms and Molecules1 Mark
Question
Write the molecular formulae for the following compounds. Iron $(III)$ sulphide.
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Answer

Oxidation state of sulphide is $−2$ and that of iron is given as $+3.$ Therefore, to balance the charges, molecular formula will be $Fe2S3.$

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