CPI Flashcards
Adolf Baeyer’s contribution in medicine, made by reacting malonic acid and urea with a catalyst is called.
Barbituric acid (Malonic Ester Synthesis)
Which industry produces electricity aside from its main product?
Nuclear Industry, Oil and Gas Industry
Cement dust is characterized by very fine particulates. The exhaust gas temperatures from a cement kiln are very hot. Which of the following airpollution control devices would
appear to be appropriate?
Fabric filters, Electrostatic precipitators, Wet scrubbers
Charles Goodyear discovered that mixing hot rubber with sulfur produced a stronger and a more elastic material. This process results in cross-linking of the hydrocarbon chains by disulfide bonds. What is this process called?
Vulcanization
The type of treatment of municipal waste water involving bubbling of air
Aeration
It is the most efficient process for hydrogen gas production which emits less amount of carbon.
Electrolysis
Serendipity is a category used to describe scientific discoveries that occur at the intersection of chance and wisdom, examples of which are discoveries of Teflon, penicillin, and aspartame. Who coined the word “serendipity”?
Horace Walpole
What is the most commonly used coagulant?
Aluminum sulfate, Alum [ Al2(SO4)3 ]
Brass is an alloy of
Copper and Zinc (Cu & Zn)
A product of alumina and silica at high temperature.
Alumina Silicate (Al2SiO5)
A type of wastewater treatment process for treating sewage or industrial wastewater using aeration and a biological floc composed of bacteria and protozoa.
Activated sludge process
A substance which can be readily converted into dye or other colored compound.
Dye precursor
This type of coal is a valuable domestic fuel because of its clean-burning characteristics. It has the highest carbon content among different types of coal.
Anthracite coal
Acetylene can be produced industrially from the hydrolysis of?
Calcium carbide (CaC2)
Cement mainly contains
primarily of calcium silicate, aluminates and ferrites
Other compounds like gypsum, limestone and other additives.
Glass manufacturing procedures may be divided into four major phases. What is the correct order of these phases?
Batch Preparation (Melting-Forming-Finishing)
This phase involves two (2) operations: (1) holding a mass of glass above a certain critical temperature long enough to reduce internal strain by plastic flow to less than a predetermined maximum and (2) cooling the mass to room temperature slowly enough
to hold the strains below this same maximum.
Annealing
It is the major industrial process for smelting aluminium. It involves electrolysis of alumina (Al2O3) dissolved in a fused bath of cryolite.
Hall-Heroult process
Oil shale is an organic-rich fine-grained sedimentary rock also known as
Shale/Kerogen shale
This is the current method of producing sulphuric acid in high concentrations. Platinum
used to be the catalyst for the reaction but V2O5 is now preferred. This process also produces SO3 and oleum.
Contact process
