Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Equilibrium
Which of the following pairs can be utilised as acid-base indicator?
1
Red cabbage leaves and turmeric
2
Salt and turmeric
3
Banana leaves and cabbage leaves
4
More than one of the above
5
None of the above