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Question of the Day

Which of the following gas is used in fire extinguisher?

  1. Sulfur dioxide
  2. Carbon dioxide
  3. Carbon monoxide
  4. Nitrogen dioxide

QOTD Winners

[21 September 2026]

Nazim Ansari

Ravi Ahuja

BIOMEDICAL TECHNIQUES

HUMAN RESPIRATORY SYSTEM

DIGESTIVE GLANDS AND THEIR FUNCTIONS

EXTRACTION OF METALS