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CHEMISTRY

JAMB 2007 - Question 13

Chemistry 2007 JAMB Past Questions - Question 13: Which of the following sets of metals dissolves in dilute HCL?

Choose the correct answers from the options given.

Which of the following sets of metals dissolves in dilute HCL?

A: Fe, Sn and Cu

B: Mg, Fe and Cu .

C: Mg, Sn and Fe

D: Cu, Mg and Sn

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Correct Answer

Explanation

Fe (Iron): Iron reacts with dilute HCl to produce iron(II) chloride (FeCl₂) and hydrogen gas (H₂).
Sn (Tin): Tin also reacts with dilute HCl to produce tin(II) chloride (SnCl₂) and hydrogen gas.
Cu (Copper) and Mg (Magnesium): These metals are less reactive than iron and tin and do not readily dissolve in dilute HCl at room temperature. However, magnesium will react with hotter dilute HCl to produce magnesium chloride (MgCl₂) and hydrogen gas.
Therefore, the correct answer is Mg, Sn and Fe.