1. Iron filings and sulphur powder were mixed together and divided into two parts, A and B. Part A was heated strongly while part B was not heated. Which gas will be evolved when dilute hydrochloric acid is added to part A?
A. Hydrogen sulphide
B. Hydrogen
C. Sulphur dioxide
D. Sulphur trioxide
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iron fillings and sulphur were mixed together and divided into two parts A and B part I was heated strongly while part B was not heated dilute hydrochloric acid was added to the both the parts and evolution of gas was seen in both the cases how will you identify the gases evolved
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