Question

Hydrocarbon used for welding purposes is:

• A. Ethene
• B. Ethyne
• C. Ethane
• D. Benzene

Hint:

Ethyne (acetylene) is the most common hydrocarbon used in welding because of its high flame temperature, which allows for effective metal joining.

Answer 1

The Correct Option is B

Ethyne (also known as acetylene, \( C_2H_2 \)) is a hydrocarbon used in welding due to its high combustion temperature. It burns with a luminous flame, making it suitable for welding purposes. Ethene (ethylene, \( C_2H_4 \)) and ethane (\( C_2H_6 \)) are not used in welding, and benzene is an aromatic compound that is not used in welding either.