Home » mcq » chemistry » Which of the following is used in welding broken pieces of iron rails and machine parts? A. Aluminium sulphate B. Solder C. Aluminium powder D. None of the above
Aluminium sulphate
Solder
Aluminium powder
None of the above
Answer is Right!
Answer is Wrong!
The correct answer is: C. Aluminium powder
Aluminium powder is a fine powder
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of aluminium metal. It is used in a variety of applications, including welding, casting, and pyrotechnics. In welding, aluminium powder is used to create a strong bond between two pieces of metal. It is also used to create a protective coating on metal surfaces.
Solder is an alloy of tin and lead that is used to join two pieces of metal together. It is melted and applied to the joint, where it cools and hardens to form a strong bond.
Aluminium sulphate is a white powder that is used in a variety of applications, including water treatment, papermaking, and ceramics. It is not used in welding.
None of the above is the correct answer.