Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Equilibrium
Phenolphthalein is not suitable indicator for the titration between ________ and _______.
1
Oxalic acid; acidified KMnO4
2
Ba(OH2); H2SO4
3
NaOH ; HCl
4
More than one of the above
5
None of the above