Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 202126 FebruaryMorning Shift
Exam
JEE Main
Year
2021
Date
26 February
Shift
Morning Shift
Subject
Chemistry
Chapter
s Block Elements

JEE Main 2021 · 26 February · Morning Shift · Chemistry · s Block Elements

Find A, B and C in the following reactions: NH _ 3 + A + CO _ 2 → (...

Find A,BA, B and CC in the following reactions:

NH3+A+CO2→(NH4)2CO3{NH}_{3} + A + {CO}_{2} \to {\left({NH}_{4}\right)}_{2}{CO}_{3}

(NH4)2CO3+H2O+B→NH4HCO3{\left({NH}_{4}\right)}_{2}{CO}_{3} + {H}_{2}O + B \to {NH}_{4}{HCO}_{3}

NH4HCO3+NaCl→NH4Cl+C{NH}_{4}{HCO}_{3} + NaCl \to {NH}_{4}Cl + C

Options

  1. AA−H2O;B−CO2;C−NaHCO3A - {H}_{2}O; B - {CO}_{2}; C - {NaHCO}_{3}
  2. BA−H2O;B−O2;C−Na2CO3A - {H}_{2}O; B - {O}_{2}; C - {Na}_{2}{CO}_{3}
  3. CA−H2O;B−O2;C−NaHCO3A - {H}_{2}O; B - {O}_{2}; C - {NaHCO}_{3}
  4. DA−O2;B−CO2;C−Na2CO3A - {O}_{2}; B - {CO}_{2}; C - {Na}_{2}{CO}_{3}

Correct answer

A. A−H2O;B−CO2;C−NaHCO3A - {H}_{2}O; B - {CO}_{2}; C - {NaHCO}_{3}

Step-by-step solution

Ammonia reacts with carbon dioxide and water to form ammonium bicarbonate.

2NH3+H2O(A)+CO2⟶(NH4)2CO32{NH}_{3} + \mathop{{H}_{2}O}_{( A )} + {CO}_{2} ⟶ {\left({NH}_{4}\right)}_{2}{CO}_{3}

(NH4)2CO3+H2O+CO2(B)⟶2NH4HCO3{\left({NH}_{4}\right)}_{2}{CO}_{3} + {H}_{2}O + \mathop{{CO}_{2}}_{( B )} ⟶ 2{NH}_{4}{HCO}_{3}

Ammonium carbonate reacts with sodium chloride to form sodium bicarbonate and ammonium chloride.

NH4HCO3+NaCl⟶NaHCO3(C)+NH4Cl{NH}_{4}{HCO}_{3} + NaCl ⟶ \mathop{{NaHCO}_{3}}_{( C )} + {NH}_{4}Cl

Practice s Block Elements on Quantrex Academy →

More from s Block Elements

First and second ionization enthalpies of lithium are 520 kJ mol ^ -1 and 7297 kJ mol ^… JEE Main 2026The correct set that contains all kinds (basic, acidic, amphoteric and neutral) of oxides… JEE Main 2026Given below are two statements: One is labelled as Assertion A and the other is labelled… JEE Main 2023Be ( OH ) _ 2 reacts with Sr ( OH ) _ 2 to yield an ionic salt. Choose the incorrect… JEE Main 2023In the given reaction cycle X, Y and Z respectively are JEE Main 2023The density of alkali metals is in the order JEE Main 2023Alkali metal from the following with least melting point is JEE Main 2023Mg ( NO _ 3 ) _ 2 . XH _ 2 O and Ba ( NO _ 3 ) _ 2 . YH _ 2 O , represent formula of the… JEE Main 2023 Full s Block Elements list All JEE Main PYQs