Teaching UKPSC Lecturer Mock Test Series 2024 General Science Chemistry Classification of Elements and Periodicity in Properties

एल्युमिनियम अयस्क ‘बॉक्साइट’ का सूत्र क्या है?

1
Al2O3
2
Al2O3.H2O
3
Al2O3.2H2O
4
Na3AlF6
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