Question: 
নিচের কোনটি সঠিক নয়?
The pH of a 10-2 M HCl solution is 2
The pH of a 0.01 M NaOH is 12
The PH of a 10-9 M HCl solution is 9
The PH of a 10-9 M HCl solution is 9
Answer: 
The PH of a 10-9 M HCl solution is 9
Last Updated: 
20/09/2020 - 20:43