Explain the following chemical reactions with the help of balanced equations.
1.zinc reacts with dilute sulphuric acid.
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Answer:
Zn + H2SO4 gives out ZnSO4 + H2.
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Reaction of Zinc with Dilute Sulphuric Acid
Zinc is more reactive than hydrogen and it displaces hydrogen from dilute acids. Zinc reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas is evolved. This is a single displacement reaction of a non-metal by a metal.
Zn + H2So4 ----> ZnSo4 + H2
The products ZnSO4 and H2 (g) are entirely different in chemical composition and chemical properties from the reactants Zn and H2SO4. So, this reaction is a chemical change.
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