AP EAMCET 22 May 2023 Shift 2 Paper

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Question : 145 of 160
 
Marks: +1, -0
Identify the correct statements about chemisorption
I) It is irreversible adsorption
II) Enthalpy of adsorption is in the range of 20−40‌kJ‌mol−1
III) It is unilayered adsorption
IV) It does not need appreciable activation energy
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