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Gases in Liquids

A mixture of ...

Question

A mixture of two colourless substances was dissolved in water. When gaseous ${C l}_{2}$ was passed through the solution, a deep brown colour developed. Addition of ${B a C l}_{2}$ or $N a O H$ to the original solution give a white precipitate. The mixture contained :

A

{N a N O}_{3}

and

{A l C l}_{3}

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B

N a B r

and

K C l

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C

{M g I}_{2}

and

{M g S O}_{4}

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D

{B a S O}_{4}

and

{P b C l}_{2}

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Solution

The correct option is C ${M g I}_{2}$ and ${M g S O}_{4}$
The mixture contains ${M g I}_{2}$ and ${M g S O}_{4}$
Barium chloride reacts with magnesium sulphate to form white ppt of barium hydroxide
Sodium hydroxide reacts with magnesium iodide to form white ppt of magnesium hydroxide. Same colour of ppt is obtained by reaction of magnesium sulphate with NaOH.
Magnesium salts react with chlorine gas to form brown ppt.

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Similar questions

Q. A mixture of two white substances was dissolved in water. On passing

C l_{2}

gas through the solution, a deep brown colour is developed. Addition of

B a C l_{2}

solution to the original solution gives a white precipitate. Addition of a large amount of

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solution to the original solution gives a white precipitate, whose suspension in water is used as an antacid. The mixture gives golden yellow colour flame. The mixture contains :

Q. A mixture of two white substances was dissolved in water. On passing

C l_{2}

gas through the solution a deep brown colour is developed. The addition of

B a C l_{2}

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Q. A mixture of two white substances is soluble in water. This solution gives brown colour gas on passing chlorine gas. Another sample of solution gives white precipitate with

B a C l_{2}

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H C l

. The original solution of the mixture gives white precipitate with large excess of

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solution whose suspension is used as antacid. After filtering the precipitate, the filtrate was boiled with excess

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C a C O_{3}, B a C l_{2}, A g N O_{3}, N a_{2} S O_{4}, Z n S O_{4} a n d N a O H

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Q. A hydrated metallic salt (A) , light green in colour gives a white anhydrous residue (B) after being heated gradually. (B) is soluble in water and its aqueous solution reacts with NO to give a dark brown compound (C). (B) on strong heating gives a brown residue (D) and a mixture of two gases (E) and (F). The gaseous mixture , when passed through acidified permanganate, discharged the pink colour and when passed through acidified

B a C l_{2}

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F e S O_{4} . 7 H_{2} O

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F e S O_{4} . N O o r [F e (H_{2} O)_{6} N O] S O_{4}]

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S O_{2}

S O_{3}

If true enter 1, else enter 0.

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