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Identify the product in the following re...

Identify the product in the following reaction.
3,4,5-tribromoaniline `underset((ii)H_3PO_2)overset((i)"Diazotisation")to `?

A

3, 4, 5 - Tribromo nitroaniline

B

1, 2, 3- Tribromobenzene

C

3, 4, 5 - Tribromophenol

D

2, 4, 6- Tribromobenzene

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to follow the two steps outlined in the reaction involving 3,4,5-tribromoaniline. ### Step 1: Diazotisation 1. **Starting Compound**: 3,4,5-tribromoaniline (C6H3Br3NH2) 2. **Reagent**: Sodium nitrite (NaNO2) and hydrochloric acid (HCl) are typically used for diazotisation. 3. **Reaction**: The amino group (-NH2) of 3,4,5-tribromoaniline is converted into a diazonium salt (C6H3Br3N2Cl) through diazotisation. The structure remains the same except for the replacement of the amino group with a diazonium group (-N2Cl). 4. **Product after Step 1**: 3,4,5-tribromobenzenediazonium chloride. ### Step 2: Reduction with H3PO2 1. **Reagent**: Phosphorous acid (H3PO2) is a reducing agent. 2. **Reaction**: The diazonium salt undergoes reduction, which leads to the replacement of the diazonium group (-N2Cl) back to an amino group (-NH2). 3. **Final Product**: The final product after reduction is 3,4,5-tribromoaniline, which can also be represented as 1,2,3-tribromobenzene when considering the positions of the bromine atoms on the benzene ring. ### Final Answer The final product of the reaction is **1,2,3-tribromobenzene**.
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Knowledge Check

  • Identify final product in the following reaction, CH_(3)underset(OH)underset(|)CHCOOH overset(Delta)to "Product"

    A
    B
    `CH_(2)=CHCO_(2)H`
    C
    `CH_(3)-overset(O)overset(||)C CO_(2)H`
    D
    `CH_(3)CH_(2)OH`

  • the ozonolysis product(s) of the following reaction is(are) CH_(3)CH_(2)-C-=CH underset("(ii) "H_(2)O)overset((i)" "O_(3))to product(s)

    A
    `CH_(3)COCH_(3)`
    B
    `CH_(3)COCH_(3)+HCHO`
    C
    `CH_(3)COOH+HCOOH`
    D
    `CH_(3)CH_(2)COOH+HCOOH`