Question

The composition of thermite mixture is :

• A. iron (III) oxide and aluminium powder in the ratio 1:3
• B. aluminium powder and iron (III) oxide in the ratio 1:3
• C. aluminium powder and barium peroxide in the ratio 1:3
• D. barium peroxide and aluminium powder in the ratio 1:3

Answer 1

Answer: (B)

aluminium powder and iron (III) oxide in the ratio 1:3

Thermite mixture is a pyrotechnic composition of metal powder fuel and metal oxide. It has diverse composition including Aluminium because of its high boiling point and low cost. Oxidizers include iron(III) oxide. This mixture is used for thermite welding, often used to join rail tracks, metal refining, weapons, fireworks etc.