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Q.

Layer test is used for determination of

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a

Chalogens

b

Pnicogens

c

Halogens

d

Noble gases

answer is C.

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Detailed Solution

The layer test is a qualitative test which involves redox reactions among halogens. Layer test is used to find the presence of especially iodine and bromine in a solution.

The following reaction shows the example of Layer test

2NaBr+Cl2Br2+2NaCl (Brown layer)

2NaI+Cl2I2+2NaCl (Voilet layer)

Hence the correct option is (C).

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