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X gave white ppt with sodium hydroxide solution, dissolved in excess sodium hydroxide solution. In aqueous ammonia, it produced white ppt that was soluble in excess aqueous ammonia
Zinc Ion
A reducing agent
It is a brown gas.
Cu 2+
Potassium chloride
Lime
They are colourless
Chloride Ion
Aqueous sodium hydroxide reacts with a metal ion producing a coloured precipitate. This precipitate changes colour on standing. What is the ion present?
Zinc Ion
A reducing agent
It is a brown gas.
Cu 2+
Potassium chloride
Lime
They are colourless
Chloride Ion
What property do sulfur dioxide and carbon dioxide have in common?
Zinc Ion
A reducing agent
It is a brown gas.
Cu 2+
Potassium chloride
Lime
They are colourless
Chloride Ion
Wastewater from a factory was found to have a pH value of 2. Which substance could be used to neutralize the wastewater before it is released into the river?
Zinc Ion
A reducing agent
It is a brown gas.
Cu 2+
Potassium chloride
Lime
They are colourless
Chloride Ion
Dilute nitric acid was added to a colourless solution S. the acidified solution of S reacted with silver nitrate to give a white precipitate. What is S most likely to be?
Zinc Ion
A reducing agent
It is a brown gas.
Cu 2+
Potassium chloride
Lime
They are colourless
Chloride Ion
A solution contains the anion Y and dilute nitric acid. It produced a white precipitate with silver nitrate and a white precipitate with lead(II) nitrate. What ion could Y be?
Zinc Ion
A reducing agent
It is a brown gas.
Cu 2+
Potassium chloride
Lime
They are colourless
Chloride Ion
Which state is not true about ammonia gas?
Zinc Ion
A reducing agent
It is a brown gas.
Cu 2+
Potassium chloride
Lime
They are colourless
Chloride Ion
Solution X turns acidified potassium dichromate (VI) from orange to green. What must solution X contain?
Zinc Ion
A reducing agent
It is a brown gas.
Cu 2+
Potassium chloride
Lime
They are colourless
Chloride Ion
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