1.

Write word equations and then balanced equations for the reaction taking place when -

Answer»

dilute sulphuric acid reacts with zinc granules.
dilute hydrochloric acid reacts with magnesium ribbon.
dilute sulphuric acid reactswith aluminium powder
dilute hydrochloric acid reacts with iron FILINGS.

Solution :Sulphuric acid `+ ZN rarr` Zinc sulphate + Hydrogen `H_(2)SO_(4) + Zn rarr ZnSO_(4) + H_(2)`
(b) Dilute hydrochloric acid reacts with magnesium ribbon Hydrochloric acid + Magnesium `rarr` Magnesium chloride + Hydrogen
`2HCl + Mg rarr MgCL_(2) + H_(2)`
(c ) Dilute sulphuric acid reacts with aluminium powder
Sulphuric acid + Aluminium `rarr` Aluminium sulphate + Hydrogen
`3H_(2)SO_(4) + 2Al rarr Al_(2)(SO_(4))_(3) + 3H_(2)`
(d) Dilute hydrochloric acid reacts with iron filings.
Hydrochloric acid + `Fe rarr` Iron chloride + Hydrogen `6HCl + 2FE rarr 2FeCl_(2) + 3H_(2)`


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