In the laboratory chlorine gas can be prepared from :

manganese dioxide and sodium chloride

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red lead

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hypo

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bleaching powder

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Solution

The correct options are
A manganese dioxide and sodium chloride
D bleaching powder
In the laboratory chlorine gas can be prepared from manganese dioxide and sodium chloride, red lead and bleaching powder.
$2 N a C l + M n O_{2} + 3 H_{2} S O_{4} \to 2 N a H S O_{4} + M N S O_{4} + 2 H_{2} O + C l_{2} ↑$
Bleaching powder liberates $C l_{2}$ when treated with mineral acid of $C O_{2}$ .
$C a O C l_{2} + 2 H C l \to C a C l_{2} + H_{2} O + C l_{2} ↑$
$C a O C l_{2} + H_{2} S O_{4} \to C a S O_{4} + H_{2} O + C l_{2} ↑$
$C a O C l_{2} + C O_{2} \to C a C O_{3} + C l_{2} ↑$

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F e

Chlorine is prepared in the laboratory by treating manganese dioxide (MnO₂) with aqueous hydrochloric acid according to the reaction

4HCl₍_aq₎ + MnO₂₍_s₎ → 2H₂O₍_l₎ + MnCl₂₍_aq₎ + Cl₂₍_g₎

How many grams of HCl react with 5.0 g of manganese dioxide?

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