Principles Related to Practical Chemistry questions
214 published questions with worked solutions.
- Among Fe³⁺, Pb²⁺, Cu²⁺ and Mn²⁺, identify the one that gets precipitated out while passing H₂S in presence of NH₄OH as group...
- A reagent which gives brilliant red precipitate with Nickel ions in basic medium is
- Number of metal ions characterized by flame test among the following is ________. Sr²⁺, Ba²⁺, Ca²⁺, Cu²⁺, Zn²⁺, Co²⁺, Fe²⁺
- Given below are two statements. Statement (I) : The gas liberated on warming a salt with dil H₂SO₄, turns a piece of paper dipped...
- The Lassaigne's extract is boiled with dil. HNO₃ before testing for halogens because,
- The potassium ferrocyanide solution gives a Prussian blue colour, when added to :
- H_ 2 S gas when passed through a solution of cations containing HCl precipitates the cations of second group of qualitative...
- Which one of the following set of elements can be detected using sodium fusion extract ?
- To an aqueous solution containing ions such as Al^ 3+ , Zn^ 2+ , Ca^ 2+ , Fe^ 3+ , Ni^ 2+ , Ba^ 2+ and Cu^ 2+ were added conc....
- The addition of dilute NaOH to Cr^ 3+ salt solution will give :
- Which of the following compound is added to the sodium extract before addition of silver nitrate for testing of halogens?
- During the qualitative analysis of salt with cation y^ 2+ , addition of a reagent (X) to alkaline solution of the salt gives a...
- In the flame test of a mixture of salts, a green flame with blue centre was observed. Which one of the following cations may be...
- During halogen test, sodium fusion extract is boiled with concentrated HNO_ 3 to
- Match List-I with List-II : List-I (Metal Ion): (a) Mn^ 2+ (b) As^ 3+ (c) Cu^ 2+ (d) Al^ 3+ List-II (Group in Qualitative...
- Formation of which complex, among the following, is not a confirmatory test of Pb^ 2+ ions?
- Passing H_2S gas into a mixture of Mn^ 2+ , Ni^ 2+ , Cu^ 2+ and Hg^ 2+ ions in an acidified aqueous solution precipitates
- Upon treatment with ammoniacal H_2S , the metal ion that precipitates as a sulfide is
- The pair(s) of ions where BOTH the ions are precipitated upon passing H_2S gas in presence of dilute HCl, is(are)
- The correct option(s) to distinguish nitrate salts of Mn^ 2+ and Cu^ 2+ taken separately is (are)
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