Correct answer
B. II, III
Explanation
The correct answer is II, III.
Which of the following petrographic constituents of coal is non-coking?
Which of the following is an extensive property of a system?
Laboratory determination of the diffusivity of vapor is done by ________ method?
The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K)?
A coal having high amount of volatile matter________?
The temperature at which the second Virial co-efficient of a real gas is zero is called the________?