HOCL, N2H4, NaOH, HCl, Ba(OH)2
NaOH (highest pH)
HCl (lowest pH)
That seems correct to me, but I’ve been graduated for some time. I feel 90% confident.
actually the other answer is wrong the correct answer is:
Ba(OH)2, NaOH, N2H4, HOCl then HCl!