Advertisements
Advertisements
प्रश्न
Name:
a gas that is oxidizing as well as a reducing agent.
उत्तर
Hydrogen gas
APPEARS IN
संबंधित प्रश्न
Identify the component oxidised in the following reaction:
H2S + Cl2 → S + 2HCl
Explain oxidation in terms of gain or loss of oxygen with one example.
Define oxidation in terms of gain or loss of hydrogen with one example.
Identify from the following reaction the reactants that undergo oxidation and reduction.
2Ag2O → 4 Ag + O2 ↑
Explain the following in term of gain or loss of oxygen with two examples.
Reduction
Divide the following reactions into oxidation and reduction half-reaction:
Zn + Pb2+→ Pb + Zn 2+
Define Oxidation reaction.
When the positive charge on an ion increases or the negative charge on them decreases it is called as _______.
A reddish brown metal used in electrical wires when powdered and heated strongly turns black. When hydrogen gas is passed over this black substance, it regains its original colour. Based on this information answer the following questions:
- Name the metal and the black substance formed.
- Write balanced chemical equations for the two reactions involved in the above information
State the change in colour observed in following case mentioning the reason:
Copper powder is strongly heated in air.
