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🧪 Chemistry  ·  Chemistry in Everyday Life  ·  NEET & JEE

Antibiotics are medicines used to treat infections caused by:

Answer: bacteria.

  • A viruses only
  • B bacteria
  • C minerals
  • D vitamins

Correct answer: B. bacteria

Explanation: Antibiotics act against bacteria; they are ineffective against viruses.

Micelle Formation: How Soap Removes Greasegrease / oilhydrophobic tail (in oil) - hydrophilic head (in water, blue circles)

The hydrophobic hydrocarbon tail of each soap/detergent molecule dissolves into an oily dirt droplet, while the hydrophilic (ionic) head stays in the surrounding water - trapping the grease inside a micelle that rinses away with water.

Concept context

Drugs and how they interact with biological targets, chemicals in food, and cleansing agents (soaps and detergents) - chemistry applied directly to daily life and healthcare.

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