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The p-Block Elements
Question
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HCl when reacts with finely powdered iron, forms ferrous chloride and not ferric chloride. Why?

Answer

Its reaction with iron produces H2
 Fe + 2HCl→ FeCl2 + H2

Liberation of hydrogen prevents the formation on of ferric chloride.

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Some More Questions From The p-Block Elements Chapter

Write a balanced equation for the hydrolytic reactions PCl5 in heavy water.

What is the basicity of H3PO4?

What happens when H3PO3 is heated?

List the important source of sulphur.

Write the order of thermal stability of the hydrides of Group 16 elements.

Why is H2O a liquid and H2S a gas?

Which of the following does not react with oxygen directly?
Zn, Ti, Pt, Fe

Complete the following reactions
(i) C2H4 + O2 →
(ii) 4Al + 3O2 →