Question

Write word equations and then balanced equations for the reaction taking place when
(a) dilute sulphuric acid reacts with zinc granules
(b) dilute hydrochloric acid reacts with magnesium ribbon
(c) dilute sulphuric acid reacts with aluminium powder
(d) dilute hydrochloric acid reacts with iron filing​

Answer 1

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(a) Zinc + dilute sulphuric acid → Zinc sulphate + Hydrogen

Zn (s) + H2SO4 (aq) → ZnSO4 (aq) + H2 (g)

(b) Magnesium ribbon + dil. Hydrochloric acid → Magnesium chloride + Hydrogen

Mg (s) + 2 HCl (aq) → MgCl2 (aq) + H2 (g)

(c) Aluminium powder + dil. Sulphuric acid > Aluminium sulphate + Hydrogen

2Al (s) + 3H2SO4 (aq) → Al2 (SO4)3 (aq) + 3H2 (g)

(d) Iron filings + Dilute hydrochloric acid > Ferric chloride + Hydrogen

2Fe (s) + 6HCl (aq) → 2FeCl3 (aq) + 3H2 (g)

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