1.

(A): Physical adsorption and chemical adsorption are distinguished by adsorption isobars (R): Physical adsorption is weak while chemical adsorption is strong

Answer»

Both (A) and (R) are true and (R) is the CORRECT EXPLANATION of (A) 
Both (A) and (R) are true and (R) is not the correct explanation of (A) 
(A) is true but (R) is false 
(A) is false but (R) is true 

Answer :B


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