5749Chemical EngineeringMedium
Which is the most stable crystalline form of silica at room temperature?
ACristobalite
BQuartz
CTridymite
DNone of these
Correct answer
B. Quartz
Explanation
The correct answer is Quartz.
Correct answer
B. Quartz
Explanation
The correct answer is Quartz.
For the free settling of a spherical particle through a fluid, the slope of, CD-log NRe, plot is________?
The co-efficient of drag and lift for an incompressible fluid depends on the________?
Steel produced from phosphatic iron is ________ in nature?
Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about ________ ppm (parts per million)?
As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is ________ μg/m3.(μg-microgram)?
World’s worst radioactive pollution was caused by nuclear reactor disaster which occurred in ________?