______________ is an ore of lead?
______________ is an ore of lead?
A. Quartz
B. Galena
C. Siderite
D. Chalcopyrite
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Widely used method for the conditioning of boiler feed water is the ___________________?
Widely used method for the conditioning of boiler feed water is the ___________________?A. Cold lime process
B. Coagulation
C. Hot-lime soda process
D. SequestrationZeolite is a/an___________________?
Zeolite is a/an___________________?A. Naturally occuring clay which is capable of exchanging cations
B. Abrasive material
C. Catalyst used in shift conversion
D. None of theseAlcohol is produced by the
Question: Alcohol is produced by the
[A].oxidation of an aldehyde [B].
hydrolysis of an ether [C].
esterification of a fat [D].
none of these Answer: Option B
Explanation:
No answer description available for this question.
CaCl(OCl) is the chemical formula of___________________?
CaCl(OCl) is the chemical formula of___________________?A. Hypo
B. Bleaching powder
C. Plaster of Paris
D. Aqua regiaComparing sulphate process with sulphite process, we find that __________ in the later.
Question: Comparing sulphate process with sulphite process, we find that __________ in the later.
[A].both temperature & pressure in the former is less than that [B].
both temperature & pressure in the former is more than that [C].
temperature is more in the former whereas pressure is more [D].
pressure is more in the former whereas temperature is less Answer: Option B
Explanation:
No answer description available for this question.
During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as_______________________?
During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as_______________________?A. It is very corrosive at elevated temperature
B. Its viscosity is not reduced on further heating (hence pressure drop on pumg it, cannot be
further reduced)
C. It decomposes on further increasing the temperature
D. None of these