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NEET UG CHEMISTRY MCQ: S-BLOCK ELEMENTS

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For which one of the following minerals, the composition given is incorrect?
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Correct option: B
Borax – Na2B4O7.7H2O\mathrm{N}{\mathrm{a}_2}{\mathrm{B}_4}{\mathrm{O}_7}.7{\mathrm{H}_2}\mathrm{O}
Option B (Borax – Na2B4O7.7H2O\mathrm{N}{\mathrm{a}_2}{\mathrm{B}_4}{\mathrm{O}_7}.7{\mathrm{H}_2}\mathrm{O}) is incorrect. The correct formula for Borax is Na2B4O7.10H2O\mathrm{N}{\mathrm{a}_2}{\mathrm{B}_4}{\mathrm{O}_7}.10{\mathrm{H}_2}\mathrm{O}.

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