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Displacement Reaction

Which of the ...

Question

Which of the following is the most appropriate order of the reactivity of metals towards hydrochloric acid?

A

Magnesium > Iron > Sodium > Copper

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B

Potassium > Silver > Aluminium > Copper

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C

Sodium > Copper > Iron > Gold

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D

Potassium > Aluminium > Iron > Silver

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Solution

The correct option is D Potassium > Aluminium > Iron > Silver
Potassium is more reactive than aluminium followed by iron and silver. Thus, the correct order of reactivity is Potassium > Aluminium > Iron > Silver.

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