Correct about chemistry: (a) Same atomic number different nucleon = isotopes (b) Non-metallic compounds form covalent molecules (c) Mg²⁺ oxidation = +2
उत्तर: (B) (a),(c) Only — The correct answer is (B) (a),(c) Only. The other options contain one or more statements that are factually inaccurate or do not meet the criteria specified in the question.
2025Level 2Medium
Correct about chemistry: (a) Same atomic number different nucleon = isotopes (b) Non-metallic compounds form covalent molecules (c) Mg²⁺ oxidation = +2
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