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  • Slaked lime on reaction with a pungent green gas A gives a white solid B used for disinfection purposes. Solid B reacts with HCl to produce the same green pungent gas A. What is A and B?<div cl

Slaked lime on reaction with a pungent green gas A gives a white solid B used for disinfection purposes. Solid B reacts with HCl to produce the same green pungent gas A. What is A and B?

Option: 1

A: \mathrm{Br}_2 \quad \mathrm{~B}: \mathrm{CaCl}_2


Option: 2

\begin{array}{ll}A: \mathrm{Cl}_2 & \mathrm{~B}: \mathrm{CaCl}_2\end{array}


Option: 3

\mathrm{A}: \mathrm{Cl}_2 \quad \mathrm{~B}: \mathrm{Ca}(\mathrm{OCl})_2


Option: 4

\mathrm{A}: \mathrm{Br}_2 \quad \mathrm{~B}: \mathrm{Ca}(\mathrm{OCl})_2


Answers (1)

best_answer

2 \mathrm{Cl}_2+2 \mathrm{Ca}(\mathrm{OH})_2 \rightarrow \mathrm{Ca}(\mathrm{ClO})_2+\mathrm{CaCl}_2+2 \mathrm{H}_2 \mathrm{O}

\mathrm{Ca}(\mathrm{ClO})_2+4 \mathrm{HCl} \rightarrow \mathrm{CaCl}_2+2 \mathrm{Cl}_2+2 \mathrm{H}_2 \mathrm{O}

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shivangi.shekhar

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