Question

student A and B dipped a small piece of Mg ribbon in copper sulphate solution. but only student A observed faster reaction. both were used same samples. what might be the reason ​

Answer 1

Answer:

student b had not cleaned mg ribbon with sand paper.

Answer 2

The reason is Student B not used the sand paper to wipe or rub the Mg ribbon

Explanation:

• Magnesium is one the metals which forms metal oxide when they exposed to air
• The oxygen present in the atmosphere combines with metals like magnesium and produce metal oxide
• So the Sand papers are used to wipe or rub the metals like Magnesium before some chemical experiments and usage to remove the layer of oxygen over the Magnesium
• This makes magnesium even more fast to react with other compounds
• When a small piece of Mg ribbon is dipped in copper sulphate solution, color of the Mg ribbon will change.
• But the Mg ribbon is not rubbed with sand paper before means the reaction occurs slowly.    

To learn more ...

1. https://brainly.in/question/1212864

2. https://brainly.in/question/3258096