1.

Explain the action of dilute hydrochloric acid on the following with chemical equation. (a) Magnesium ribbon (b) Sodium hydroxide (c ) Crushed egg shells

Answer»

Solution :Hydrogen gas is formed
`MG(s) + 2HCl(aq) rarr MgCl(aq) + H_(2)(g) UARR`
(b) Sodium chloride and water are formed
`NaOH + HCl rarr NaCl + H_(2)O`
(c ) crushed EGG shells are made of calcium CARBONATE `(CaCO_(3))` which reacts with HCl to give brisk EFFERVESCENCE due to `CaCO_(3) (s) + 2HCl(aq) rarr CaCl_(2)(aq) + H_(2)O(i) + CO_(2)(g)`


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