Question
Give one example of an oxidation-reduction reaction which is also:
- A combination reaction.
- A displacement reaction.
✓
Answer
- $2\text{Cu}\ +\ \text{O}_2\ \ \ \ \ \xrightarrow{\ \ \ \ {\text{Heat}}\ \ \ \ \ }\ \ \ 2\text{CuO}\\ ^\text{Copper}\ \ \ \ \ ^\text{Oxgen}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ^\text{Copper Oxide}$
- $\text{CuO}\ \ \ \ \ \ \ \ \ \ \ +\ \ \ \ \ \ \text{H}_2\ \ \ \ \xrightarrow{\ \ \ \ {\text{Heat}}\ \ \ \ \ }\ \ \ \text{Cu}\ \ \ \ \ +\ \ \ \ \text{H}_2\text{O}\\ ^\text{Copper Oxide}\ \ \ \ \ \ \ \ \ \ \ ^\text{Hydrogen}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ^\text{Copper }\ \ \ \ \ \ \ \ \ ^\text{Water}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
State the rule to determine the direction of a:
Magnetic field produced around a straight conductor carrying current.
Magnetic field produced around a straight conductor carrying current.
The diagram below shows a circuit containing a lamp L, a voltmeter and an ammeter. The voltmeter reading is 3V and the ammeter reading is 0.5A
- What is the resistance of the lamp?
- What is the power of the lamp?
State two uses of ethanol (other than as a fuel).
Catenation is the ability of an atom to form bonds with other atoms of the same element. It is exhibited by both carbon and silicon. Compare the ability of catenation of the two elements. Give reasons.
What is an oxidising agent? Name two oxidising agents which can oxidise ethanol to ethanoic acid.
In which direction does current flow in an electric circuit?
Define:
- Principal focus of a concave mirror.
- Focal length of a concave mirror.
On what factors does the resistance of a conductor depend?
How do harmful chemicals get accumulated progressively at each trophic level in a food chain?
A vertical ray of light strikes the horizontal surface of some water:
- What is the angle of incidence?
- What is the angle of refraction?