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JEE Main levelSingle correct optionDifficulty 2 of 3pb208

Lead dioxide on warming with concentrated hydrochloric acid evolves

A $HCl$ only, with no other gas
B $O X_{2}$
C $Cl X_{2}$
D $H X_{2}$

Answer: C

PbO X_{2} + 4 HCl PbCl X_{2} + Cl X_{2} + 2 H X_{2} O

. Pb(IV) is a strong oxidant and oxidises chloride to chlorine while being reduced to the stable +2 state.

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