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Grade: 8

                        

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

2 months ago

Answers : (2)

Rituraj Tiwari
askIITians Faculty
1789 Points
							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.
2 months ago
Vikas Amritiya
askIITians Faculty
158 Points
							

 

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.
2 months ago
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