Which of the following is an exothermic reaction?

A ) Formation of iron sulphide by heating the mixture of iron and sulphur ✅

B ) Formation of nitric oxide by heating the mixture of nitrogen and oxygen

C ) Formation of hydrogen oxide by heating the mixture of hydrogen and iodine

D ) Formation of calcium oxide and carbon dioxide by heating calcium carbonate

Related Questions
  1. Exothermic reactions are those reactions during which heat is:
  2. During a chemical reaction, total mass of the product is equal to the total mass of reactants, This is a statement of:
  3. Fireworks is an example of ____ reactions.
  4. Substances which take part in a chemical reaction are called:
  5. The chemical reaction during which a compound splits up into two or more simple substances is called:
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