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Question

(C) $Ca(OH)_2$ (calcium hydroxide) is used in the Solvay process for the preparation of washing soda $(Na_2CO_3 \cdot 10H_2O)$ to recover ammonia $(NH

Vedclass · Accepted Answer

$Ca(OH)_2$

Vedclass · Answer

(C) $Ca(OH)_2$ (calcium hydroxide) is used in the Solvay process for the preparation of washing soda $(Na_2CO_3 \cdot 10H_2O)$ to recover ammonia $(NH_3)$ from ammonium chloride $(NH_4Cl)$.$2NH_4Cl + Ca(OH)_2 \longrightarrow 2NH_3 + CaCl_2 + 2H_2O$When $CO_2$ is passed through an aqueous solution of $Ca(OH)_2$ (lime water),it forms $CaCO_3$,which makes the solution milky.$Ca(OH)_2 + CO_2 \longrightarrow CaCO_3 \downarrow + H_2O$$Ca(OH)_2$ is also used in white washing due to its disinfectant nature.Therefore,the correct option is $C$.

$I. Na_3N$	$II. Na_2O$
$III. NaO_2$	$IV. Na_2O_2$

$A$ chemical $A$ is used for the preparation of washing soda to recover ammonia. When $CO_2$ is bubbled through an aqueous solution of $A$,the solution turns milky. It is used in white washing due to its disinfectant nature. What is the chemical formula of $A$?

Similar Questions

Which of the following metals will give $H_2$ gas on reaction with $NaOH$?

When sodium is heated in excess of air,which of the following compounds are obtained?

$I. Na_3N$ $II. Na_2O$

$III. NaO_2$ $IV. Na_2O_2$

Assertion : Magnesium continues to burn in nitric oxide.
Reason : During burning heat evolved does not decompose $NO$.

Which one of the following elements reduces $NaOH$ to $Na$?

Soda ash is

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