☰
✕

Redox Reactions
Question
Wired Faculty App

Copper does not dissolve in H2SO4. Why?

Answer

Copper has a positive standard electrode  potential and is placed below hydrogen in electrochemical series. The standard reduction potential of Cu is higher than that of H2. Hence, Cu has lesser tendency to give up electron than H. Therefore, Cu does not reduce H+ ion given by dil. H2SO4 to H2 and can not dissolve.

Sponsor Area

Some More Questions From Redox Reactions Chapter

What are indirect redox reactions?

Write formulas for the following compounds:
(a) Mercury (II) chloride
(b) Nickel (II) sulphate
(c) Tin (IV) oxide
(d) Thallium (I) sulphate
(e) Iron (III) sulphate
(f) Chromium (III) oxide

What are electrolytes?

What are cations and anions?

What is electrolysis?

Mention two uses of electrolysis.

Define oxidation number of an element.

Differentiate between an ion and an atom.