Advertisements
Advertisements
प्रश्न
When a mixture of iron powder and sulphur powder is heated strongly to form iron sulphide, then heat energy is :
पर्याय
released
first absorbed and then released
absorbed
neither absorbed nor released
Advertisements
उत्तर
first absorbed then released
When a mixture of iron and sulphur is heated strongly, they first absorb the energy to get excited. This is followed by the formation of a new compound iron sulphide (FeS) with the release of huge amount of energy in the form of heat and light.
APPEARS IN
संबंधित प्रश्न
List the points of differences between homogeneous and heterogeneous mixtures with examples.
What is the major difference between a solution and an ordinary mixture ?
Define a mixture. Give two points of evidence to show that sugar solution is a mixture.
Explain why, a solution of salt in water is considered a mixture and not a compound.
Which of the following are homogeneous in nature ?
- ice
- wood
- soil
- air
Name the process you would use to separate ammonium chloride from a mixture of sodium chloride and ammonium chloride.
List four characteristics of a mixture.
Define Miscible liquids
Give an example of mixtures of two compounds
You are given two samples of water labelled as ‘A’ and ‘B’. Sample ‘A’ boils at 100°C and sample ‘B’ boils at 102°C. Which sample of the water will not freeze at 0°C? Comment.
