Question

6. Which of the following is the correct arrangement of the given metals in ascending order of their reactivity?
[Zinc, Iron, Magnesium, Sodium]
(a) Zinc > Iron > Magnesium > Sodium
(b) Sodium > Magnesium > Iron > Zinc
(c) Sodium > Zinc > Magnesium > Iron
(d) Sodium > Magnesium > Zinc > Iron

Answer 1

Answer:

(D) $Mg > Na > Fe > Zn$ Hint: The arrangement of metals in a vertical column in the order of their decreasing reactivity is called the reactivity series of metals. Here first we discuss the highly metallic nature of ion, magnesium, sodium and zinc. So, the correct option is (C).

Explanation:

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Answer 2

Metals in ascending order of their reactivity is (d) Sodium > Magnesium > Zinc > Iron

• In order to determine the reactivity of the metals and their reducing power we use the reactivity series in which all the metals are arranged in descending order from top to bottom on basis of their reactivity.
• The metals on top are mostly the most reactive elements that could easily displace the metal less reactive then them in any chemical reaction while on the other hand the bottom position is occupied by least reactive metals.
• From the given metals Sodium is highly reactive followed by Magnesium, Zinc and finally Iron. Hence, correct option is (d) Sodium > Magnesium > Zinc > Iron.