Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Equilibrium
The pH of four solutions A, B, C and D is 9, 2, 7, 4 respectively. Arrange them in the correct order of acidic strength.
1
A > C > D > B
2
B > D > C > A
3
C > D > B > A
4
More than one of the above
5
None of the above