which pair of element do not exhibit variable O.S. 1) fe,pb 2) H,cl 3) f,zn 4) o,n Share with your friends Share 2 Animesh Giri answered this 2) H and Cl do not exhibit variable Oxidation states. -11 View Full Answer Bhuvnesh Gupta answered this F,zn not a H,Cl because 'H' shows variable oxidation. But in 'F' it is a highly electro negativity it posses negative charge -3 Mrunal Ujwal Sindhikar answered this Nnnk -2 Aman Khatib answered this Which pair of elements do not exhibit variable O. S? -1