AP EAMCET2014ChemistrySurface Chemistry
Assertion (A) van der Waals' forces are reponsible for chemisorptions. Reason (R) High temperature is favourable for chemisorptions. The correct answer is
Options
- A(A) is false, but (R) is true
- BBoth (A) and (R) are correct and (R) is the correct explanation of A
- CBoth (A) and (R) are correct and (R) is not the correct explanation of (A)
- D(A) is true, but (R) is false
Correct answer
A. (A) is false, but (R) is true
Step-by-step solution
van der Waals' forces are not responsible for chemisorptions. These forces are involved in physisorption. For chemisorptions, high temperature is favourable. It increases with increase of temperature.