Metals generally react with dilute acids to produce hydrogen gas. Lead is not used as a protective coating on other metals as it is poisonous. It is dangerous to put these metals into an acid. please provide the formula … Metals to the left of hydrogen in the electrochemical series react with hydrochloric acid. Which of the following reacts with cold water vigorously? Dilute acids react with relatively reactive metals such as magnesium, aluminium, zinc and iron. Correct Answer : (D) Copper. Figure \(\PageIndex{1}\): (a) Iron powder reacts rapidly with dilute hydrochloric acid and produces bubbles of hydrogen gas because the powder has a large total area: 2Fe(s) + 6HCl(aq) 2FeCl3(aq) + 3H2(g). The reaction is similar to the reaction with water, forming the metal salt (either sulfate or chloride) plus H 2(g).. For example. 8. 7. Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilute sulphuric acid. The Reaction of Metals with Dilute Acid.. Potassium, sodium, lithium and calcium all react violently with dilute sulfuric acid and dilute hydrochloric acid. iron (II) sulfide reacts with hydrochloric acid to produce iron (II) chloride and hydrogen sulfide gas? Although you should take a look at what Klaus said, copper does in fact react with hydrochloric acid, it just takes a week until all the copper is converted into copper chloride (green) and another week or so until it forms crystals and you can dissolve them in water to form copper chloride again (but depending on the amount of chloride it has, it'll be blue or green). how many grams of acid are needed to react with 75.0 grams of iron (II) sulfide ore which contains 30.0% inert material? Potassium and sodium are not used to react with dilute ‘hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen. Metals to the right of hydrogen in the electrochemical series, such as copper, silver and gold, do not react. Iron reacts with hydrochloric acid to produce iron(III) chloride and hydrogen gas.Fe(s) + HCl(aq) -----> FeCl3(aq) + H2(g)The hydrogen gas from the reaction of 2.200 g of iron with an excess of acid is collected ina 10.00 L flask at 25.0°C. The metal which doesn't react with dilute HCl among the following metals is Copper. No, hydrochloric acid does not need air to react with iron. 3H2SO4 + 2Al —> Al2(SO4)3 + 3H2 b)Dilute hydrochloric acid reacts with sodium carbonate Answer: Pb (lead) is above hydrogen in reactivity series. Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilute sulphuric acid. (a) magnesium (b) aluminium (c) iron (d) copper. This is because Cu is less reactive than Hydrogen. 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