Advertisements
Advertisements
प्रश्न
State whether the following conversion is oxidation or reduction:
Cu2+ + 2 e-→ Cu
Advertisements
उत्तर
Reduction
APPEARS IN
संबंधित प्रश्न
Identify the substances that are oxidised and the substances that are reduced in the following reaction.
\[\ce{4Na(s) + O2(g) -> 2Na2O(s)}\]
Explain oxidation in terms of gain or loss of oxygen with one example.
Define reduction.
Give the general group study of hydrogen with reference to
reducing power
Identify the oxidising agent (oxidant) in the following reactions
`"V"_2"O"_5 + 5"Ca" -> 2"V" + 5"CaO"`
Which among the following are physical or chemical change?
Heating of an iron rod to red hot
Why do we store silver chloride in a dark coloured bottle?
A silver article generally turns black when kept in the open for a few days. The article when rubbed with toothpaste again starts shining.
- Why do silver articles turn black when kept in the open for a few days? Name the phenomenon involved.
- Name the black substance formed and give its chemical formula.
What happens when zinc granules are treated with dilute solution of H2SO4, HCl, HNO3, NaCl and NaOH Also write the chemical equations if reaction oçcurs.
Choose the odd one out and write the reason:
