Aluminium sulphate
Solder
Aluminium powder
None of the above
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Answer is Wrong!
The correct answer is: C. Aluminium powder
Aluminium powder is a fine powder 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.