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Q.

On heating NaX with H2SO4 and MnO2 the halogens that cannot be prepared is ________.

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a

I2

b

Cl2

c

Br2

d

F2

answer is D.

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Detailed Solution

Fluoride is the most electronegative element, due to this reason MNO2​ and H2​SO4​ are not able to oxidise fluoride to fluorine.

Hence no reaction takes place.

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