Question

Acetylene is a blue color gas which mixed with oxygen to produce a hot flame.

(a) True

(b) False

I had been asked this question by my college director while I was bunking the class.

Query is from Gas Welding topic in division Welding and Related Processes of Casting-Forming-Welding II

Answer 1

The correct choice is (b) False

For explanation I would say: In gas welding, acetylene is basically a colorless gas with a very distinctive odour and highly combustible when it is mixed with oxygen. Acetylene gas is formed by mixing the calcium carbide with water and then it is composed, which forms a compound of carbon and hydrogen having the chemical formula C2H2.