When sulphur dioxide is passed through a golution of hydrogen sulphide in water
A.sulphuric acid is formed in solution
B.sulphurous acid is formed in solution
C.sulphur is precipitated
D.no change is observed
A.sulphuric acid is formed in solution
B.sulphurous acid is formed in solution
C.sulphur is precipitated
D.no change is observed
A.limestone to 120-130?C
B.soda ash to 120-130?C
C.dolomite to 120-130?C
D.gypsum to 120-130?C
A.quicklime
B.slaked lime
C.milk of lime
D.soda lime
A.nature of solvent
B.nature of solute
C.temperature
D.current strength
A.80% H2SO4
B.98.5% H2SO4
C.90% H2SO4
D.20% oleum
A.easy poisoning
B.fragility
C.high initial investment
D.all of these answers
A.consume less power per ton of chlorine produced
B.require less initial investment for the same capacity
C.can produce 70% NaOH solution
D.uses saturated NaCI solution with solid NaCI make-up
A.is relatively immune to poisons
B.requires low initial investment and 5% replacement per year
C.requires low O2/SO2 to give economic conversion
D.requires dilute SO2 input (7-10%)
A.petroleum refinery
B.fertilizer industry
C.steel industry
D.pharmaceutical industry
A.there are no H+
B.there are no OH?
C.H+ and OH- are present in very small but equal concentration
D.[H+] + [OH-] = 1