Question

Which of these metak cannot be used to prepare hydrogen by the action of an 200
a. sodium
b. iron
c. calcium
d copper
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Answer 1

Answer:

n the laboratory Hydrogen is commonly prepare from metals by the action of the acid.  Some metals such as Potassium, Sodium, Magnesium which are reacted with dilute  and HCl to produce Hydrogen, while some other metals such as Aluminum, Copper, Mercury which are not reacted with and HCl to produce Hydrogen. This quality of metals in the preparation of hydrogen by the reaction of acid depends on the reactivity series of the metals.

Explanation:

Answer 2

Answer:

Copper is the correct answer

Explanation:

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