The pH scale is used to measure the acidity of a fluid. The pH scale ranges from 0 to 14. A pH of 7 is neutral, whereas a pH result below 7 is acidic and above 7 is alkaline. Urine has the widest ...
Indira Gandhi National Open University has released IGNOU Ph.D Entrance Test 2024 answer key & question paper. Candidates who have appeared for the Ph.D. Entrance Test can download the answer key ...
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