Rajan was asked to write the equations of a certain type of reactions. He wrote the ones given in the box. Which one should be removed from the list and why?
CaCO3 ---- heat
C + 2S ---- heat
Mg + 02 ---- heat
N2 + O2 ---- heat
Answers
Answered by
2
Answer:
Explanation:(a) Combination reaction : Cao+CO
2
→CaCO
3
, in this reaction calcium oxide is combines with carbon dioxide to form calcium carbonate.
(b) Decomposition reaction : CaCO
3
→CaO+CO
2
, in this reaction calcium carbonate is decomposed to calcium oxide and carbon dioxide.
(c) Displacement reaction : Fe(s)+CuSO
4
(aq.)→FeSO
4
(aq)+Cu(s), in this reaction Fe displaces copper to form ferric sulphate.
(d) Analysis reaction : 2H
2
O→2H
2
+O
2
Hence, the correct option is C
Answered by
2
Answer:
C + S2 because burning process take place only in presence of Oxygen and so heat is released
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