Question of the Day

Mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines?

  1. Hydrogen and Oxygen
  2. Methane and Air
  3. Oxygen and Acetylene
  4. Carbon-di-oxide and Hydrogen

QOTD Winners

[31 August 2026]

Nazim Ansari

BIOMEDICAL TECHNIQUES

HUMAN RESPIRATORY SYSTEM

DIGESTIVE GLANDS AND THEIR FUNCTIONS

EXTRACTION OF METALS