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JEE Main 202331 JanuaryMorning Shift
Exam
JEE Main
Year
2023
Date
31 January
Shift
Morning Shift
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

JEE Main 2023 · 31 January · Morning Shift · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Identify X, Y and Z in the following reaction. (Equation not...

Identify X,YX, Y and ZZ in the following reaction. (Equation not balanced)

ClO∙+NO2→X¯⟶H2OY¯+Z¯Cl\overset{∙}{O} + {NO}_{2} \to \mathop{X}_{¯}\overset{{H}_{2}O}{⟶}\mathop{Y}_{¯} + \mathop{Z}_{¯}

Options

  1. AX=ClONO2,Y=HOCl,Z=NO2X = {ClONO}_{2}, Y = HOCl, Z = {NO}_{2}
  2. BX=ClNO2,Y=HCl,Z=HNO3X = {ClNO}_{2}, Y = HCl, Z = {HNO}_{3}
  3. CX=ClONO2,Y=HOCl,Z=HNO3X = {ClONO}_{2}, Y = HOCl, Z = {HNO}_{3}
  4. DX=ClNO3,Y=Cl2,Z=NO2X = {ClNO}_{3}, Y = {Cl}_{2}, Z = {NO}_{2}

Correct answer

C. X=ClONO2,Y=HOCl,Z=HNO3X = {ClONO}_{2}, Y = HOCl, Z = {HNO}_{3}

Step-by-step solution

In the summer, nitrogen dioxide and methane react with chlorine monoxide and chlorine atoms which results in a shrinkage of chlorine and hence prevents ozone layer depletion.

ClO(g)∙+NO2(g)⟶ClON(X)O2(g)Cl\overset{∙}{O ( g )} + {NO}_{2} ( g ) ⟶ ClO\mathop{N}_{( X )}{O}_{2} ( g )

Cl(g)+CH4(g)→CH3(g)+HCl(g)Cl ( g ) + {CH}_{4} ( g ) \to {CH}_{3} ( g ) + HCl ( g )

During winter, special types of clouds are formed over the Antarctic region. These clouds provide the surface for the hydrolysis of chlorine nitrate to form hypochlorous acid.

ClONO2(g)+H2O(g)→HOCl(g)+HNO3(g)(Y)(Z){ClONO}_{2} ( g ) + {H}_{2}O ( g ) \to HOCl ( g ) + {HNO}_{3} ( g ) ( Y ) ( Z )

So, X=ClONO2,Y=HOCl,Z=HNO3X = {ClONO}_{2}, Y = HOCl, Z = {HNO}_{3}

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