7.31 What are the oxidation states of phosphorus in the following:
We know that the oxidation state of calcium is +2 let oxidation state be
Hence the oxidation state of the phosphorus is -3
CBSE Class 12 board exams 2025 to have 50% competency-based questions; no change in 10th
CBSE Class 12 board exams 2024 over; expected result date, trends of last 10 years
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