Textbook questions IV — task. Science CBSE, Class 10.

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1. Write word equations and then balanced equations for the reaction taking place when –
(a) dilute sulphuric acid reacts with aluminium powder.

\(H_2SO_4 + Zn \rightarrow ZnSO_4 + H_2\)
\(12HCl + 3Fe \rightarrow3FeCl_2 + 3H_2\)
\(3H_2SO_4+ 2Al \rightarrow Al_2(SO_4)_3 + 3H_2\)
\(3H_2SO_4+ 7Al \rightarrow Al_2(SO_4)_3 + 3H_2\)

2. Write word equations and then balanced equations for the reaction taking place when –
(b) dilute hydrochloric acid reacts with iron filings.

\(3H_2SO_4+ 7Al \rightarrow Al_2(SO_4)_3 + 3H_2\)
\(H_2SO_4 + Zn \rightarrow ZnSO_4 + H_2\)
\(3H_2SO_4+ 2Al \rightarrow Al_2(SO_4)_3 + 3H_2\)
\(12HCl + 3Fe \rightarrow3FeCl_2 + 3H_2\)

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