railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Science Chemistry Equilibrium
Which one of the following is the correct order of pH for the given substances?
1
Coffee < Lemon juice < Milk of magnesia < Blood
2
Milk of magnesia < Blood < Coffee < Lemon juice
3
Lemon juice < Blood < Coffee < Milk of magnesia
4
Lemon juice < Coffee < Blood < Milk of magnesia