Name the type of reactions for the following chemical equations PDF

We have studied different types of chemical reactions in Chapter 1 Chemical Reactions and Equations of class 10 science NCERT books.

Chemical reactions are written in the form of equations. Today we are going to name the types of reactions for the given chemical equations. These are balanced chemical equations but you should know how to balance chemical equations.

 

25 Balanced Chemical Equations

Following are the chemical equations with their types of reactions.

  1.   Ca(OH)₂  + CO₂ →CaCO₃ + H₂O

Ans, - Neutralization reaction

Reason – In this reaction metal oxide(CO₂) which is acidic reacts with a base (Ca(OH)₂  ) to give salt and water, so this is a neutralization reaction.

  2.  Zn + 2AgNO₃ →Zn(NO₃)₂ + 2Ag

Ans. Displacement reaction

Reason – Zn is more reactive than Ag so it displaces Ag and forms Zn(NO₃)₂.

   

   3.   2Al + 3CuCl₂ →2AlCl₃ + 3Cu

Ans – Displacement reaction

   4. 2KClO₃ →2KCl + 3O₂

Ans. – Decomposition reaction

Reason – Complex compound KClO₃ breaks into simpler substances 2KCl & 3O₂, so this is a decomposition reaction.

   5. N₂ + 3H₂  → 2NH₃

Ans. – Composition/combination reaction

Reason – Two substances combine to form one compound, so this is a composition reaction.

   6. NH₃ +  HCl →NH₄Cl

Ans. - Composition/combination reaction

   7.   2NH₃+ H₂SO₄ →(NH₄)₂SO₄

Ans. - Composition/combination reaction

   8.   AgNO₃ + NaCl →AgCl₂ + NaNO₃

Ans -Double displacement reaction

Reason – Exchange of ions between AgNO₃ & NaCl takes place.

   9.  NH₄NO₂   →2H₂O   + N₂

Ans - Decomposition reaction

  _10.    2KNO₃    →  2KNO₂ + O₂

Ans. - Decomposition reaction

 

  11. BaCl₂ + K₂SO₄ →BaSO₄ +2KCl

Ans.- Double displacement

  12.  Ba(OH)₂ + 2HBr →BaBr₂ + 2H₂O

Ans. - Double displacement

  13.  2KCN+ H₂SO₄ →K₂SO₄ + 2HCN

Ans. - Double displacement

  14. 2Al + 6HCl →2AlCl₃ + 3H₂

Ans. – Displacement reaction

  15.   CH₄+ 2O₂ →CO₂ + 2H₂O

Ans.-  Redox reaction

  16.   4Fe  +  3O₂ →2Fe₂O₃

Ans.- Combination reaction

  17.   2HgCl₂ + SnCl₂ →Hg₂Cl₂ + SnCl₄

Ans.- Redox reaction

Reason – SnCl₂   is a reductant and HgCl₂ is an oxidant.

  18.  Al₂O₃ + 3H₂SO₄ →Al₂(SO₄)₃ + 3H₂O

Ans.- Double displacement reaction

  19.  Al₂(SO₄)₃+ 6NaOH →2Al(OH)₃ + 3Na₂SO₄

Ans.- Double displacement reaction

  20.    2PbO₂ + 2H₂SO₄   →2PbSO₄ +  2H₂O + O₂

Ans.- Redox reaction

  21. 2Al + Fe₂O₃ →Al₂O₃ + 2Fe

Ans.- Displacement reaction

  22. 2HNO₃ +Ca(OH)₂ →Ca(NO₃)₂ + 2H₂O

Ans.- Displacement reaction

  23. 2NaOH + H₂SO₄ →Na₂SO₄ + 2H₂O

Ans.- Neutralization reaction

  _24. NaCl +AgNO₃ →AgCl + NaNO₃

Ans.- Double displacement reaction

  25. BaCl₂ + H₂SO₄ →BaSO₄ + 2HCl

Ans – Double displacement reaction

 

⬛Quiz⬛

 

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FAQs

   1. Why the following reaction is not a double displacement reaction?

        Ca(OH)₂  + CO₂ →CaCO₃ + H₂O

  Ans. –  In the double displacement reaction, the exchange of ions takes place between ionic compounds but in the given reaction carbon dioxide is a covalent compound so there is no exchange of ions taking place that’s why this is not a double displacement.