ANS:B - 2000

The correct temperature produced by an oxy-hydrogen flame is approximately 2800°C, not 2000°C. An oxy-hydrogen flame is a type of flame produced by burning a mixture of oxygen and hydrogen gases. It is known for its high temperature and clean burning characteristics, making it suitable for various applications such as metal cutting, welding, and brazing. At temperatures around 2800°C, the oxy-hydrogen flame is extremely hot and capable of melting and cutting through a wide range of materials with precision and efficiency. This high temperature is due to the exothermic reaction between oxygen and hydrogen gases, which produces intense heat energy upon combustion. Therefore, the correct temperature produced by an oxy-hydrogen flame is approximately 2800°C, not 2000°C.