Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Equilibrium
Synthetic detergents are prepared from
1
Potassium salts of higher fatty acids
2
Sodium salts of higher fatty acids
3
Hydrocarbons of petroleum
4
More than one of the above
5
None of the above