JEE Main 202622 Jan, Evening shiftChemistryEasyEquilibrium123× since 2002Which of the following mixture gives a buffer solution with pH = 9.259.259.25 ? Given : pKb(NH4OH)=4.75\mathrm{p}K_b(\mathrm{NH_4OH})=4.75pKb(NH4OH)=4.75AOption A. 0.50.50.5 M NH4OH\mathrm{NH_4OH}NH4OH (0.20.20.2 L) + 0.20.20.2 M HCl (0.50.50.5 L)BOption B. 0.20.20.2 M NH4OH\mathrm{NH_4OH}NH4OH (0.50.50.5 L) + 0.10.10.1 M HCl (0.50.50.5 L)COption C. 0.20.20.2 M NH4OH\mathrm{NH_4OH}NH4OH (0.40.40.4 L) + 0.10.10.1 M HCl (111 L)DOption D. 0.40.40.4 M NH4OH\mathrm{NH_4OH}NH4OH (111 L) + 0.10.10.1 M HCl (111 L)CheckSkip · show solution
