Principles Related to Practical Chemistry questions
214 published questions with worked solutions.
- Consider the following reactions. PbCl_2 + K_2CrO_4 (Hot solution) A + 2KCl A + NaOH B + Na_2CrO_4 PbSO_4 + 4CH_3COONH_4...
- Consider three metal chlorides x, y and z, where x is water soluble at room temperature, y is sparingly soluble in water at room...
- In the Group analysis of cations, Ba^ 2+ & Ca^ 2+ are precipitated respectively as
- Given below are two statements: Statement I: Griss-Ilosvay test is used for the detection of nitrite ion, which involves the use...
- Consider the following reactions. Na_2B_4O_7 2X+Y CuSO_4+Y Non-Luminous flame Z+SO_3 2Z+2X+Carbon Luminous flame 2Q+Na_2B_4O_7+CO...
- Among the following cations, the number of cations which will give characteristic precipitate in their identification tests with...
- Identify the inorganic sulphides that are yellow in colour : (A) (NH4)2S (B) PbS (C) CuS (D) As2S3 (E) As2S5 Choose the correct...
- Formation of Na_4[Fe(CN)_5NOS], a purple coloured complex formed by addition of sodium nitroprusside in sodium carbonate extract...
- Choose the correct tests with respective observations. (A) CuSO₄ (acidified with acetic acid) + K₄[Fe(CN)₆] → Chocolate brown...
- A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is...
- An organic compound 'A' is oxidized with Na_2O_2 followed by boiling with HNO_3. The resultant solution is then treated with...
- The number of white coloured salts, among the following is _______. (a) SrSO_4 (b) Mg(NH_4)PO_4 (c) BaCrO_4 (d) Mn(OH)_2 (e)...
- In the precipitation of the iron group (III) in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide...
- Match List-I with List-II: List-I (Precipitating reagent and conditions): A. NH₄Cl + NH₄OH B. NH₄OH + Na₂CO₃ C. NH₄OH + NH₄Cl +...
- During the detection of acidic radical present in a salt, a student gets a pale yellow precipitate soluble with difficulty in...
- Match List I with List-II List-I (Name of the test): A. Borax bead test B. Charcoal cavity test C. Cobalt nitrate test D. Flame...
- In qualitative test for identification of presence of phosphorous, the compound is heated with an oxidising agent. Which is...
- Given below are certain cations. Using inorganic qualitative analysis, arrange them in increasing group number from 0 to VI. A....
- HCl was passed through a solution of CaCl2, MgCl2 and NaCl. Which of the following compound(s) crystallise(s) ?
- A salt with few drops of conc. HCl gives apple green colour in flame test. The group precipitate of the salt is dissolved in...
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