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One of the by-products formed during the recovery of NH3 from Solvay process is :
Option: 1 NaHCO3
Option: 2 CaCl2
Option: 3 Ca(OH)2
Option: 4 NH4Cl

Answers (1)

best_answer

On a small scale ammonia is obtained from ammonium salts which decompose when treated with caustic soda or calcium hydroxide.

2 \mathrm{NH}_{4} \mathrm{Cl}+\mathrm{Ca}(\mathrm{OH})_{2} \rightarrow 2 \mathrm{NH}_{3}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{CaCl}_{2}

\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4}+2 \mathrm{NaOH} \rightarrow 2 \mathrm{NH}_{3}+2 \mathrm{H}_{2} \mathrm{O}+\mathrm{Na}_{2} \mathrm{SO}_{4}

Recovery of NH3

\begin{aligned}2 \mathrm{NH}_{4} \mathrm{Cl}+\mathrm{Ca}(\mathrm{OH})_{2}\longrightarrow & \mathrm{CaCl}_{2}+2 \mathrm{NH}_{3}+2 \mathrm{H}_{2} \mathrm{O}\\ & \text { byproduct } \end{aligned}

Therefore, the Correct option is (2)

Posted by

Kuldeep Maurya

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