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When copper( C u ) react with hydrochloric acid ( H C l ). What will happen? A) React vigorously B) No reaction C) React modestly D) React slowly

When copper(Cu) react with hydrochloric acid (HCl). What will happen?

A)

React vigorously

B)

No reaction

C)

React modestly

D)

React slowly

 
 
 

Grade:8

2 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
10 months ago
No, HCl acid does not react with copper. Only those metals whose standard reduction potentials are lower than that of hydrogen react with non-oxidising acids like HCl and dil.H
2
​
SO
4
​
, and displace hydrogen from them. Copper has higher reduction potential (more positive) than hydrogen, and it does not react with HCl acid.
As shown in image copper is dipped in HCl and there is no reation at all thus Option B is correct.
Vikas Amritiya
askIITians Faculty 158 Points
10 months ago

 

No, HCl acid does not react with copper. Only those metals whose standard reduction potentials are lower than that of hydrogen react with non-oxidising acids like HCl and dil.H2​SO4​, and displace hydrogen from them. Copper has higher reduction potential (more positive) than hydrogen, and it does not react with HCl acid.
As shown in image copper is dipped in HCl and there is no reation at all thus Option B is correct.

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