Q39.White phosphorus on reaction with concentrated NaOH solution in an inert atmosphere of CO2 gives phosphine and compound (X). (X) on acidification with HCl gives compound (Y ). The basicity of compound (Y ) is: (1) 2 (2) 1 (3) 4 (4) 3
What This Question Tests
This question involves identifying the products of a redox reaction of white phosphorus with concentrated NaOH, then the product of its acidification, and finally determining the basicity of the resulting oxyacid of phosphorus.
Concepts Tested
📚 NCERT Sections This Tests
4.15 — Describe The Oxidising Action Of Potassium Dichromate And Write The Ionic
Chemistry Class 11 · Chapter 4
4.15 Describe the oxidising action of potassium dichromate and write the ionic equations for its reaction with: (i) iodide (ii) iron(II) solution and (iii) H2S 115 The d- and f- Block Elements Reprint 2025-26
7.17 — Give Equations Of The Following Reactions:
Chemistry Class 12 · Chapter 7
7.17 Give equations of the following reactions: (i) Oxidation of propan-1-ol with alkaline KMnO4 solution. (ii) Bromine in CS2 with phenol. (iii) Dilute HNO3 with phenol. (iv) Treating phenol wih chloroform in presence of aqueous NaOH.
5.28 — How Many Ions Are Produced From The Complex Co(Nh3)6Cl2 In Solution?
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5.28 How many ions are produced from the complex Co(NH3)6Cl2 in solution? (i) 6 (ii) 4 (iii) 3 (iv) 2 139 Coordination Compounds Reprint 2025-26
📋 Question Details
- Chapter
- p-block Elements
- Topic
- Phosphorus Compounds
- Year
- 2020
- Shift
- 08 Jan Shift 2
- Q Number
- Q39
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 7: The p-Block Elements
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