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 H2SO4 are not able to oxidise fluoride to fluorine.Hence no reaction takes place.