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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Carboxylic Acid Derivatives

NTA Abhyas 2020 · Chemistry · Carboxylic Acid Derivatives

An organic acid (A) reacts with conc. H _ 2 S O _ 4 to give a...

An organic acid (A)\left(A\right) reacts with conc. H2SO4{H}_{2}S{O}_{4} to give a neutral oxide \left(B\right),acidicoxide(C)acidic oxide \left(C\right) and a diatomic oxide \left(D\right) .When(D)When \left(D\right) reacts with chlorine gas, a poisonous gas \left(E\right)isevolved.Thisgaswithis evolved. This gas withN{H}_{3}givesanorganiccompound(F).gives an organic compound \left(F\right) . The compound \left(A\right) and \left(F\right) are

Options

  1. AH2C2O4,NH2CONH2{H}_{2}{C}_{2}{O}_{4}, N{H}_{2}CON{H}_{2}
  2. BCH3COOH,NH2CONH2C{H}_{3}COOH, N{H}_{2}CON{H}_{2}
  3. CCHCl3,CH3CONH2CHC{l}_{3}, C{H}_{3}CON{H}_{2}
  4. DCCl4,CH3CONH2CC{l}_{4}, C{H}_{3}CON{H}_{2}

Correct answer

A. H2C2O4,NH2CONH2{H}_{2}{C}_{2}{O}_{4}, N{H}_{2}CON{H}_{2}

Step-by-step solution

\mathop{{H}_{2} {C}_{2} {O}_{4}}_{(A)Oxalicacid\begin{array}{ll}\left(\text{A}\right) \\ \text{Oxalic}\text{acid}\end{array}} \text{+}{H}_{2} {\text{SO}_{4} \to \mathop{{H}_{2} \text{O}_{(B)Neutral\begin{array}{ll}\left(\text{B}\right) \\ \text{Neutral}\end{array}} \text{+}\mathop{{\text{CO}_{2}}_{(C)Acidic\begin{array}{ll}\left(\text{C}\right) \\ \text{Acidic}\end{array}} \text{+}\mathop{\text{CO}_{(D)Diatomicoxide\begin{array}{ll}\left(\text{D}\right) \\ \text{Diatomic}\text{oxide}\end{array}}
CO+Cl2→COCl2(E)CO + C{l}_{2} \to \mathop{COC{l}_{2}}_{( E )}
{\text{COCl}_{2} \text{+}{\text{2NH}_{3} \to \mathop{{\text{NH}_{2} {\text{CONH}_{2}}_{(F)Urea\begin{array}{ll}\left(\text{F}\right) \\ \text{Urea}\end{array}} \text{+}\text{2HCl}
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