Air, combustion, rusting and fire fighting questions | form one Chemistry

Suggest the suitable method of preventing rust in the following

1. Moving parts of machines,eg. motorcycle chain
2. Motor vehicle (car) bodies

Answer / Solution

UNSOLVED

Which of the following process is used in preventing rust of an  iron?

1. Water
2. Boiling
3. Salting
4. Galvanization

Answer / Solution

UNSOLVED

Class F fire can best be extinguished by using

1. carbon dioxide
2. wet chemical
3. water
4. sand

Answer / Solution

UNSOLVED

All domestic utensils made of iron undergoes rusting when exposed to

1. Air and fire
2. Air and oil
3. Air and water
4. Water and oil

Answer / Solution

UNSOLVED

What is the type of fire associated with electrical equipement?

1. Class E
2. Class C
3. Class F
4. Class B

Answer / Solution

UNSOLVED