Question

select the type of reaction for the statement given below from the types given:( combination decomposition displacement and double displacement reaction)
1 ) heating of ferrous sulphate crystals.
2) mixing the solutions of Lead Nitrate and potassium iodide.
3) addition of hydrochloric acid to zinc metal.
4) addition of water to quicklime

Answer 1

1- decomposition
2- double displacement
3- displacement
4- combination.