Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Equilibrium
Which colour appears when few drops of phenolphthalein is put into test tube containing lime water?
1
yellow
2
pink
3
orange
4
More than one of the above
5
None of the above