Home
Class 12
CHEMISTRY
Colourless salt (A) decolourise I(2) sol...

Colourless salt `(A)` decolourise `I_(2)` solution and gives white precipitate (change to black) with `AgNO_(3)` solution. `(A)` also produces pink colour with `FeCl_(3)` solution. Identify `(A)` and explain reactions.

Text Solution

AI Generated Solution

To identify the colorless salt (A) and explain the reactions, let's break down the information provided step by step. ### Step 1: Identify the Colorless Salt (A) The question states that the colorless salt (A) decolorizes an iodine (I₂) solution. A well-known reaction involving iodine and a colorless salt is with sodium thiosulfate (Na₂S₂O₃). Sodium thiosulfate acts as a reducing agent and reduces iodine to iodide ions (I⁻), which is colorless. **Reaction:** \[ \text{Na}_2\text{S}_2\text{O}_3 + \text{I}_2 \rightarrow \text{Na}_2\text{S}_4\text{O}_6 + 2 \text{NaI} \] ...
Promotional Banner

Topper's Solved these Questions

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY ENGLISH|Exercise Ex 6.2 Subjective (Compound Of Cu:)|3 Videos

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY ENGLISH|Exercise Ex 6.2 Subjective (Compound Of Zn:)|1 Videos

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY ENGLISH|Exercise Ex 6.1 Subjective|12 Videos

  • COORDINATION COMPOUNDS

    CENGAGE CHEMISTRY ENGLISH|Exercise Archives Subjective|18 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Archieves Subjective|35 Videos

Similar Questions

Explore conceptually related problems

AgNO_(3) solution will not give white precipitate with

Which one of the following is likely to give a precipitate with AgNO_(3) solution ?

Which one of the following is likely to give a precipitate with AgNO_(3) solution ?

NaCl_((aq)) gives a white precipitate with AgNO_(3) solution but C Cl_(4) or CHCl_(3) does not , because

Which of the following will not produce a precipitate with AgNO_3 solution?

Ethyne gives a white precipitate with ammoniacal solution of ___. (AgNO_3//NaCl)

Phenol gives . . . . . . . . Colour with neutral FeCl_(3) solution :

NaBr gives pale yellow precipitate with AgNO_(3) solution but CBr_(4) does not. Why ?

An aqueous solution of salt gives salt precipitate with AgNO_(3) solution as well as with dilute H_(2)SO_(4) . It may be

A mixture consists (A) (red solid) and (B) (colourless solid) which gives lilac colour in flame. (a)Mixture gives black precipitate ( C) on passing H_(2)S (g) . (b) ( C) is soluble in aquaregia and on evaporation of aquaregia and adding SnCl_(2) gives greyish black precipitate (D) . The salt solution with NH_(4)OH gives a brown precipitate. The sodium extract gives yellow precipitate with AgNO_(3) solution which is insoluble in dilute ammonia solution. Identify (A) and (B) , and the precipitates (C ) and (D) .