Principles Related to Practical Chemistry questions
214 published questions with worked solutions.
- A solution containing a period-IV cation gives a precipitate on passing H_2S . A solution of this precipitate in dil. HCl...
- Copper metaborate is formed in the test for copper ion in the borax-bead test. Number of boron atoms in copper metaborate is...
- Which is soluble in water?
- Passing H_2S gas into a mixture of Mn^ 2+ , Ni^ 2+ , Cu^ 2+ and Hg^ 2+ ions in an acidified aqueous solution precipitates [IIT...
- In qualitative analysis, in III group NH_4Cl is added before NH_4OH because [UP SEE 2009]
- In qualitative analysis, in order to detect second group basic radical, H_2S gas is passed in the presence of dilute HCl to [K...
- How many of the following eight cations belong to qualitative-analysis groups IIA, III, IV, and V only: Sn ^ 2+ , ; Hg _2^ 2+ , ;...
- The metallic sulphide not precipitated if H₂S gas is passed through an aqueous solution containing cuprous chloride, bismuth...
- Some salts although containing two different metallic elements give test for only one of them in solution. Such salts are:
- The interfering radicals interfere in the test of usual inorganic analysis after II group analysis due to:
- For the precipitation of IInd group cations only the solution is made acidic so that:
- H⁺ ion produces common ion effect in the wet analysis of:
- During the presence of SO_3^ 2- and S^ 2- in a mixture, on addition of dil. H_2SO_4, one notices that:
- The apparatus in which a standard solution is prepared is known as:
- A standard solution is one whose:
- Which one of the following will dissolve in water most readily?
- In India, at the occasion of marriages, the fireworks used give green flame. Which one of the following radicals may be present?
- An aqueous solution of salt of sodium (NaX) on boiling with MgCl_2 gives white precipitate, hence anion X is:
- Excess of dilute sodium hydroxide solution is gradually added with shaking to an aqueous solution of zinc sulphate. What would...
- If NaOH is added to an aqueous solution of Zn^ 2+ ions, a white precipitate appears and on adding excess NaOH, the precipitate...
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