Which one of the following diseases does...

Which one of the following diseases does not affect the lower respiratory tract?

Common cold

Emphysema

Bronchitis

Asthma

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Which one of the following reactions does not occur?

`Cl_(2) + 2Br^(-) rarr Br_(2) + 2Cl^(-)`

`CIF_(3) + H_(2)O rarr HCl + HOF + F_(2)`

`2NaOH + Cl_(2) rarr `NaCl + NaOCl + `H_(2)`O Cold and Dil.

`Na_(2) SO_(3) + 2HCl rarr` 2NaCl + `SO_(2) + H_(2)`O

`BaO+O_(3)rarr BaO_(2)+O_(2)`

`PbS+4O_(3)rarr PbSO_(4)+4O_(2)`

`H_(2)O_(2)+O_(3)rarr H_(2)O+2O_(2)`

`2Hg+O_(3)rarr Hg_(2)O+O_(2)`

`BaO+O_(3) to BaO_(2)+O_(2)`

`PbS+4O_(3) to PbSO_(4) +4O_(2)`

`H_(2)O_(2)+O_(3) to H_(2)O+2O_(2)`

`2Hg+O_(3) to Hg_(2)O+O_(2)`