Question

किन की दुनिया अजीबीगरीब है?​

Answer 1

Answer:

simplify (a+b+c) (a+b-c) Alternatively we can calculate pOH = - log [OH-]= - log [10-1] = 1 and remembering that pH + pOH = 14 we get pH = 14 - 1 = 13.