Question

30. What gas is produced when a mixture of 7 g of iron fillings and 4 g of sulphur powder is treated with
dilute sulphuric acid at room temperature? What gas would be produced if the same mixture is first
heated strongly, cooled and then treated with dilute sulphuric acid? What is the cause of this
difference in behavior?​

Answer 1

Answer:

HYDROGEN

Explanation:

When dilute sulphuric acid is added to the mixture of iron filings and sulphur, the iron part reacts with sulphuric acid and hydrogen gas is produced which is a colourless and odourless gas.