The most commonly used bleaching agent is ______?

سب سے زیادہ استعمال ہونے والا بلیچنگ ایجنٹ ______ ہے؟

Chlorine

Alcohol

Sodium Chloride

None of these

Bleaching powder: Calcium oxychloride (CaOCl₂)

Chlorine: Atomic number 17, mass number 35.45, yellow-green gas

Halogen: Second lightest element, P-block

Properties: Oxidizing agent

Deacon's process: Chlorine production

Extraction: From seawater

Discovery: Carl Wilhelm Scheele

Uses: Water purification, swimming pool sanitation, antiseptic

Anaesthetic: Chloroform (CHCl₃)

Plastics: PVC (Poly Vinyl Chloride)