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Aqueous sodium Hydroxide reacts with a metal ion producing a coloured precipitate. The colour of the Precipitate would change upon standing. What is the metal ion?
An acid
Ammonium carbonate
Sulfuric; Zinc
Al 3+
Fe 2+
Copper(II) nitrate
Lime
Silver Sulfate
What is a reagent used to test for halides?
An acid
Ammonium carbonate
Sulfuric; Zinc
Al 3+
Fe 2+
Copper(II) nitrate
Lime
Silver Sulfate
Which of the following is not an Amphoteric Acid?
An acid
Ammonium carbonate
Sulfuric; Zinc
Al 3+
Fe 2+
Copper(II) nitrate
Lime
Silver Sulfate
Solution P turned acidified potassium dichromate(VI) from orange to green. What does Solution P contain?
An acid
Ammonium carbonate
Sulfuric; Zinc
Al 3+
Fe 2+
Copper(II) nitrate
Lime
Silver Sulfate
Compound X reacts with some metals to liberate hydrogen and is used to make fertilizers. It gives a white precipitate when added to aqueous barium nitrate. What is X?
An acid
Ammonium carbonate
Sulfuric; Zinc
Al 3+
Fe 2+
Copper(II) nitrate
Lime
Silver Sulfate
Polluted water from the industry have a pH of 3. What can be used to neutralise the polluted water?
An acid
Ammonium carbonate
Sulfuric; Zinc
Al 3+
Fe 2+
Copper(II) nitrate
Lime
Silver Sulfate
An Acid, T was added to a solution of nitrate of metal Y. A dense white precipitate was formed. What is T and Y?
An acid
Ammonium carbonate
Sulfuric; Zinc
Al 3+
Fe 2+
Copper(II) nitrate
Lime
Silver Sulfate
Which compound in solution produces a precipitate in ammonia and dissolves when an excess ammonia is added?
An acid
Ammonium carbonate
Sulfuric; Zinc
Al 3+
Fe 2+
Copper(II) nitrate
Lime
Silver Sulfate
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