- Messages
- 92
- Reaction score
- 7
- Points
- 18
-
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CHEMISTRY
- Thread starter Octahedral
- Start date
- Messages
- 92
- Reaction score
- 7
- Points
- 18
- Messages
- 92
- Reaction score
- 7
- Points
- 18
- Messages
- 772
- Reaction score
- 149
- Points
- 38
For 9, the answer is B. You HAVE to consider to 45% and mass per gram thing. For the remaining, it's A.mrpaudel said:
plz explain this:
One other question requires comment. Question 18 performed satisfactorily, but a higher proportion of
candidates, 36%, opted for the distractor B believing that heating ammonium sulphate with dilute
hydrochloric acid would liberate ammonia, rather than with limewater, only 35% choosing the key C.
(june 2003)
18 Which reagent, when mixed and heated with ammonium sulphate, liberates ammonia?
A aqueous bromine
B dilute hydrochloric acid
C limewater
D acidified potassium dichromate(VI)
isnt HCl supposed to produce ammonia?
One other question requires comment. Question 18 performed satisfactorily, but a higher proportion of
candidates, 36%, opted for the distractor B believing that heating ammonium sulphate with dilute
hydrochloric acid would liberate ammonia, rather than with limewater, only 35% choosing the key C.
(june 2003)
18 Which reagent, when mixed and heated with ammonium sulphate, liberates ammonia?
A aqueous bromine
B dilute hydrochloric acid
C limewater
D acidified potassium dichromate(VI)
isnt HCl supposed to produce ammonia?
- Messages
- 92
- Reaction score
- 7
- Points
- 18
@angelgurl .No HCl is not supposed to produce ammonia.Ammonium compunds ALWAYS react with alkalis to form salt,water and AMMONIA gas.So the answer would be C since limewater would react with ammonium sulphate to liberate ammonia.
