Producer gas consists mainly of________________________?
Producer gas consists mainly of________________________?
A. CO, CO2 N2, H2
B. CO, H2
C. H2, CH4
D. C2H2, CO2, H2
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Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about ______________ °C ?
Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about ______________ °C ?A. -83
B. -183
C. -196
D. -218Calgon used in water treatment is chemically ____________________?
Calgon used in water treatment is chemically ____________________?A. Sodium phosphate
B. Sodium hexametaphosphate
C. Calcium phosphate
D. Tricresyl phosphateReverse osmosis is normally used for the_______________?
Reverse osmosis is normally used for the_______________?A. Separation of isotopes of uranium from gaseous uranium hexafluoride
B. Separation of helium from natural gas
C. Desalination of brackish water to produce potable (drinking) water
D. Purification of oxygenDrinking (potable) water treatment does not involve __________________?
Drinking (potable) water treatment does not involve __________________?A. Coagulation
B. Sedimentation
C. Softening
D. DisinfectionCommercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is
Question: Commercial scale production of hydrogen from iron-steam reaction represented by, 3Fe + 3H2O = Fe3O4 + 4H2, is not practised, as it is
[A].a slow reaction. [B].
a discontinuous reaction (requiring regeneration of iron by water gas intermittently). [C].
still in development stage (by employing fluidised bed technique). [D].
all (a), (b) and (c). Answer: Option D
Explanation:
No answer description available for this question.
Glauber’s salt is chemically represented by
Question: Glauber’s salt is chemically represented by
[A].Na2SO4.10H2O [B].
CaCl(OCl) [C].
CaSO4.H2O [D].
(NH4)2SO4 Answer: Option A
Explanation:
No answer description available for this question.