Qualitative Analysis Self Test
Self test on observations of Qualitative Analysis. Please type your Class and Name in the name field. Eg. 3S1 Alex Ang>>> Your IP address is tracked.
- 1.Which of the following ions in solution would form a reddish-brown precipitate when aqueous sodium hydroxide solution is added dropwise to it?
- A.
Copper(II) ions
- B.
Iron(II) ions
- C.
Iron(III) ions
- D.
Zinc ions
- 2.Which of the following ions in solution would form a white precipitate that is soluble in excess sodium hydroxide solution is added to it?
- A.
Aluminium ions
- B.
Calcium ions
- C.
Lead(II) ions
- D.
Zinc ions
- 3.Which of the following ions in solution would form a white precipitate when acidified barium nitrate solution is added to it?
- A.
Chloride ion
- B.
Iodide ion
- C.
Nitrate ion
- D.
Sulfate ion
- 4.Which of the following gases fits the following description?"The gas is colourless, pungent and turns moist blue litmus paper pink and bleaches it."
- A.
Ammonia
- B.
Chlorine
- C.
Oxygen
- D.
Sulfur dioxide
- 5.What would be the observations when aqueous ammonia is added to a solution of zinc nitrate (until in excess) and heated?
- A.
White precipitate formed. On heating, a colourless, pungent gas evolved.
- B.
White precipitate formed which dissolved in excess aqeous ammonia to form a colourless solution.
- C.
White precipitate formed which dissolved in excess aqeous ammonia to form a colourless solution. On heating, a colourless, pungent gas evolved.
- D.
Blue precipitate formed which dissolved in excess aqeous ammonia to form a dark blue solution. On heating, a colourless, pungent gas evolved.
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