Write the arrangement of metals Zn, Fe, Mg and Na in a decreasing order of their reactivity towards water.
Write the arrangement of metals Zn, Fe, Mg and Na in a decreasing order of their reactivity towards water.
The correct option is A Na> Mg> Zn> Fe
Explanation for correct option:
The reactivity series, also known as the activity series, arranges metals in declining order of their reactivities. The reactivity series data can be used to determine if a metal can displace another in a single displacement reaction.
During a reaction, all elements in the reactivity series above Hydrogen will displace Hydrogen atoms from water. That's because they're higher in the series than Hydrogen and hence more reactive, allowing them to displace Hydrogen from its compound.
Option (A) is the correct answer.
- Metals reactivity towards water decreases over the period from moving left to right and it increases down in the group.
- Zinc, on the other hand, is more water-reactive than iron. That's the reason why '' is the right order.
Explanation for incorrect option:
Option(B) is incorrect as in this shown Zn is more reactive than Mg which is not true.
Option(C) is incorrect as in this order shown Mg is more reactive than Na.
Hence Option (A) is correct answer.
Na> Mg> Zn> Fe
Explanation for correct option:
The reactivity series, also known as the activity series, arranges metals in declining order of their reactivities. The reactivity series data can be used to determine if a metal can displace another in a single displacement reaction.
During a reaction, all elements in the reactivity series above Hydrogen will displace Hydrogen atoms from water. That's because they're higher in the series than Hydrogen and hence more reactive, allowing them to displace Hydrogen from its compound.
Option (A) is the correct answer.
- Metals reactivity towards water decreases over the period from moving left to right and it increases down in the group.
- Zinc, on the other hand, is more water-reactive than iron. That's the reason why '' is the right order.
Explanation for incorrect option:
Option(B) is incorrect as in this shown Zn is more reactive than Mg which is not true.
Option(C) is incorrect as in this order shown Mg is more reactive than Na.
Hence Option (A) is correct answer.
