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JEE Main 202120 JulyMorning Shift
Exam
JEE Main
Year
2021
Date
20 July
Shift
Morning Shift
Subject
Chemistry
Chapter
Some Basic Concepts of Chemistry

JEE Main 2021 · 20 July · Morning Shift · Chemistry · Some Basic Concepts of Chemistry

An inorganic Compound ' X ' on treatment with concentrated H _ 2 SO...

An inorganic Compound ′X′' X ' on treatment with concentrated H2SO4{H}_{2}{SO}_{4} produces brown fumes and gives dark brown ring with FeSO4{FeSO}_{4} in presence of concentrated H2SO4{H}_{2}{SO}_{4}. Also Compound ′X′' X ' gives precipitate ′Y′' Y ', when its solution in dilute HClHCl is treated with H2S{H}_{2}S gas. The precipitate ′Y′' Y ' on treatment with concentrated HNO3{HNO}_{3} followed by excess of NH4OH{NH}_{4}OH further gives deep blue coloured solution, Compound ′X′' X ' is:An inorganic Compound ' X ' on treatment with concentrated H _ 2 SO _ 4 produces brown fumes and gives dark brown ringAn inorganic Compound ' X ' on treatment with concentrated H _ 2 SO _ 4 produces brown fumes and gives dark brown ringAn inorganic Compound ' X ' on treatment with concentrated H _ 2 SO _ 4 produces brown fumes and gives dark brown ring

Options

  1. ACo{\left({NO}_{3}\right)}_{2}
  2. BPb{\left({NO}_{2}\right)}_{2}
  3. CCu{\left({NO}_{3}\right)}_{2}
  4. DPb{\left({NO}_{3}\right)}_{2}

Correct answer

C. Cu{\left({NO}_{3}\right)}_{2}

Step-by-step solution

An inorganic Compound ' X ' on treatment with concentrated H _ 2 SO _ 4 produces brown fumes and gives dark brown ring

An inorganic Compound ' X ' on treatment with concentrated H _ 2 SO _ 4 produces brown fumes and gives dark brown ring

An inorganic Compound ' X ' on treatment with concentrated H _ 2 SO _ 4 produces brown fumes and gives dark brown ring

∴X→Cu(NO3)2∴ X \to Cu{\left({NO}_{3}\right)}_{2}

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