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JEE Main 202117 MarchEvening Shift
Exam
JEE Main
Year
2021
Date
17 March
Shift
Evening Shift
Subject
Chemistry
Chapter
s Block Elements

JEE Main 2021 · 17 March · Evening Shift · Chemistry · s Block Elements

One of the by-products formed during the recovery of NH _ 3 from...

One of the by-products formed during the recovery of NH3{NH}_{3} from Solvay process is:

Options

  1. ACa(OH)2Ca ( OH{)}_{2}
  2. BNaHCO3{NaHCO}_{3}
  3. CCaCl2{CaCl}_{2}
  4. DNH4Cl{NH}_{4}Cl

Correct answer

C. CaCl2{CaCl}_{2}

Step-by-step solution

The Solvay process is also called ammonia recovery.

The calcium hydroxide is reacted with the ammonium chloride separated out of the carbonating tower by filtration.

Ca(OH)2(aq)+2NH4Cl(aq)→CaCl2(aq)+2H2O(l)+2NH3(g)Ca{{( OH )}_{2}}_{( aq )} + 2{NH}_{4}{Cl}_{( aq )}\to{{CaCl}_{2}}_{( aq )} + 2{H}_{2}{O}_{( l )} + 2{{NH}_{3}}_{( g )}

The ammonia is recycled back into the process to form ammoniated brine.

Calcium chloride is formed as a by-product of the Solvay process.

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