Question

Q6. Answer question on the basis of your understanding of the following paragraph
Raman and his friends visit the chemical laboratory in their school to know the difference between
elements and compounds. They asked the lab assistant about the same but the assistant did not respond to
them directly but instead told them to do an experiment. The lab assistant divided them in two groups, A
and B. Both the groups were told to take 5 g of iron fi lings and 3 g of Sulphur powder in a china dish.
Group A has to mix and crush the iron fi lings and sulphur. Group B has to do the same and then heat the
china dish till the mixture becomes red hot and then remove from flame and let it cool. To one part of both
the mixtures, they added carbon disulphide and stirred well and filtered. To another part, they added dilute
sulphuric acid.
(a) What gas is obtained by Group A?
(b) What gas is obtained by Group B and how is it identified?
(c) What is the difference between material obtained by Group A and Group B?
(d) Give one property of mixtures.

Answer 1

Answer:

Temperature (symbolized T ) is an expression of heat energy. Temperature can mean different things in different situations. Thermodynamic temperature is a measure of the kinetic energy in molecules or atom s of a substance.