5. The correct order of acid strength is
(a) HClO4 < HClO3 < HClO2 < HClO
b) HCIO < HClO2 < HClO3 < HClO4
c) HClO4 < HClO < HClO2 < HClO3
d) HClO2 < HClO3 < HClO4 < HClO
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5. The correct order of acid strength is
(a) HClO4 < HClO3 < HClO2 < HClO
b) HCIO < HClO2 < HClO3 < HClO4
c) HClO4 < HClO < HClO2 < HClO3
d) HClO2 < HClO3 < HClO4 < HClO
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Answer:
HClO4>HClO3>HClO2>HClO.
Explanation:
Oxygen is more electronegative than chlorine. With an increase in the number of O atoms attached to Cl, more electrons are pulled away from O−H bond and more weaker becomes the O−H bond. This increases the acid strength.
The decreasing order of acidic strength is HClO4>HClO3>HClO2>HClO.