वेदमाता,देवमाता,विश्वमाता माँ गायत्री से सम्बंधित साहित्य को समर्पित ज्ञानकोष

Arun Trikha simplifies the method of finding oxidation state of an element in a chemical compound.

This is simple basic math and concepts of Chemistry. If you understand the concepts Chemistry is at your fingertips. No more cramming and frighening from Chemistry.


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