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Question

X, Y and Z are three crystalline solids which are soluble in water and have a common anion. To help you to identify X, Y and Z, you are provided with the following experimental observations.

A reddish-brown gas is obtained when X, Y and Z are separately warmed with concentrated sulphuric acid and copper turnings added to mixture.

INFERENCE : The common anion is the..........ion.



A

Cl-

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B

Br-

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C

I-

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D

NO3-

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E

NO2-

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F

CO32-

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G

PO43-

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H

SO42-

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I

SO32-

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Solution

The correct option is D

NO3-


NO3-


Chemistry

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