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Physical Properties of Boron Family

In the prepar...

Question

In the preparation of AgI sol, the excess of $A g N O_{3}$ is added to potassium iodide solution. The particles of the sol will acquire:

A

negative charge

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B

positive charge

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C

no charge

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D

unpredictable

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Solution

The correct option is B positive charge

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Similar questions

Q. Equal volumes of each of two sols of AgI, one obtained by adding

A g N O_{3}

to slight excess of KI and the other obtained by adding KI to slight excess of

A g N O_{3}

, are mixed together. Then:

Q. When dilute aqueous solution of

A g N O_{3}

(excess) is added to

K I

solution, positively charged sol particles of

A g I

are formed due to adsorption of ion :

Q. When dilute aqueous solution of

A g N O_{3}

(excess) is added to

K I

solution, positively charge sol of

A g I

in formed due to adsorption of:

Q. Assertion :When KI solution is added to

A g N O_{3}

solution, negatively charged sol results. Reason: Negative charge of sol is due to preferential adsorption of iodide ions from the dispersion medium.

Q. Equal volumes of each of two sols of AgI, one obtained by adding

A g N O_{3}

to slight excess of KI and the other obtained by adding KI to slight excess of

A g N O_{3}

, are mixed together. Then:

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