Explanation:
The study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds
23. a. Mn undergoes oxidation
b. S undergoes oxidation
24. a. Oxidizing agent - CuO
Reducing agent - H2
b. Oxidizing agent - PbO
Reducing agent - CO
If we dissolve salt in water they will reduce the intermolecular forces between water molecule and this will decrease the surface tension.
Surface tension is due to cohesive forces (the forces between molecules of same substance) hence as cohesive forces decreases the surface tension also decreases
