Gamma rays have the highest penetration power because they: MCQ with Answer and Explanation

Explanation:
NH₄Cl is from strong acid (HCl) and weak base (NH₄OH). It hydrolyzes: NH₄⁺ + H₂O ⇌ NH₄OH + H⁺, making solution acidic (pH

Explanation:
High-concentration H₂O₂ (e.g., 80-90%) decomposes rapidly in the presence of a catalyst to produce superheated steam and oxygen: 2H₂O₂ → 2H₂O + O₂ + heat. This generates high-pressure gas used for propulsion (monopropellant) or as oxidizer in bipropellant systems. It is not a fuel; it provides oxygen for combustion. It must be handled carefully due to instability.

Explanation:
Ozone (O₃) is a more powerful oxidant than chlorine; it destroys bacteria, viruses, and organic contaminants, and then decomposes to oxygen, leaving no residual taste or toxic disinfection by-products. However, it does not provide lasting protection in distribution pipes, so a small chlorine dose may be added. Ozonation also removes color and odor.