The following experimental phenomena are described incorrectly () A. Red phosphorus burns in the air and white smoke is produced B. Sulfur burns in oxygen and emits a light blue flame C. Bubbles are generated when the iron wire is inserted into dilute hydrochloric acid D. Purple litmus solution turns red after being filled with carbon dioxide

The following experimental phenomena are described incorrectly () A. Red phosphorus burns in the air and white smoke is produced B. Sulfur burns in oxygen and emits a light blue flame C. Bubbles are generated when the iron wire is inserted into dilute hydrochloric acid D. Purple litmus solution turns red after being filled with carbon dioxide

A. Red phosphorus burns in the air and white smoke is produced. Correct;
B. Sulfur burns in oxygen and emits a blue purple flame. Error;
C. Bubbles are generated when the iron wire is inserted into dilute hydrochloric acid. Correct;
D. Purple litmus solution turns red after carbon dioxide is introduced. Correct
Therefore, B