which of the follow process does NOT involve redox reaction
A.bromination of methane
B.elecrolysis of sea water
C. thermal decompostion of limestone
D. removal of air pollution in car exhaust by catalytic converter
which follow of conc H2SO4 incorrect
A conc H2SO4 used a drying agent for ammonia
B.add conc H2SO4 to sugar will give steamy fume
C.blue litmus paper will finally turn black when dropped unto conc H2SO4
chem MC...
2008-04-30 2:40 am
回答 (2)
2008-04-30 3:05 am
✔ 最佳答案
第一題C....
第二題
A..>~.... Con. H2SO4係唔可以同NH3 REACT
2008-04-30 3:40 am
1. the answer is C.
there is no change in the oxidation number in the thermal
decomposition of limestone.
2. the answer is A.
conc. sulphuric acid react with ammonia to form
ammonia sulphurate. so the drying agent cannot be
sulphuric acid.
there is no change in the oxidation number in the thermal
decomposition of limestone.
2. the answer is A.
conc. sulphuric acid react with ammonia to form
ammonia sulphurate. so the drying agent cannot be
sulphuric acid.
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