A red solid is insoluble in water. however, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results is the liberation of the same violet coloured fumes and droplets of metal appear on the cooler part of the test tube. The red solid is :

(N H_{4})_{2} C r_{2} O_{7}

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H g I_{2}

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H g O

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P b_{3} O_{4}

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Solution

The correct option is B $H g I_{2}$

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Similar questions

Q. A red solid is insoluble in water. However, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results in liberation of some violet coloured fumes and droplets of a metal appear on the cooler parts of the test tube. The red solid is _______________.

Q. A red solid is insoluble in water. However, it becomes soluble if some

K I

is added to water. Heating the red solid in a test tube results in the liberation of some violet colored fumes and droplets of metal appear on cooler part of the test tube.

The red solid is :

Q. A red solid is insoluble in water, but soluble in the presence of

K I

. Heating the red solid in a test tube result in the formation of yellow sublimate in the test tube. The red solid is :

Silvery grey iron filings are added to yellow sulphur powder in a test tube. The contents of the test tube were strongly heated until they glow red. On cooling, it forms a grey dull solid. Which statement is correct about the contents of the test tube in the experiment?

Q. Assertion :

The solubility of

H g I_{2}

in water decreases in presence of

K I

Reason:

H g I_{2}

is insoluble in water but it becomes soluble in

K I (a q)

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A red solid is insoluble in water. however, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results is the liberation of the same violet coloured fumes and droplets of metal appear on the cooler part of the test tube. The red solid is :

The correct option is B HgI2

The correct option is B $H g I_{2}$