Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Chemistry Some Basic Concepts of Chemistry

x MnO2 + y Al → x Mn + z Al2O3

उपर्युक्‍त अभिक्रिया को संतुलित करने पर x, y, z केक्रमशः मान क्या होंगे?

1
4, 2, 2
2
3, 4, 2
3
2, 3, 2
4
2, 2, 3
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