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NEET UG CHEMISTRY MCQ: 14 TH GROUP ELEMENTS (P-BLOCK)

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The composition of mica is:
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Correct option: B
K2O.3Al2O3.6SiO2.2H2O{\mathrm{K}_2}\mathrm{O}.3\mathrm{A}{\mathrm{l}_2}{\mathrm{O}_3}.6\mathrm{Si}{\mathrm{O}_2}.2{\mathrm{H}_2}\mathrm{O}
The correct answer is B (K2O.3Al2O3.6SiO2.2H2O{\mathrm{K}_2}\mathrm{O}.3\mathrm{A}{\mathrm{l}_2}{\mathrm{O}_3}.6\mathrm{Si}{\mathrm{O}_2}.2{\mathrm{H}_2}\mathrm{O}) because this is the general chemical formula for mica.

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