2015 · Q70
The following item consists of two Statements I and II. Examine these two statements carefully and select the correct answer using the code given below.
Statement ICatalytic hydrogenation is highest when the catalyst remains in the powdered form.
Statement IIWhen a catalyst is in the powdered form, its surface area becomes highest. Codes
general-sciencechemistry
- ABoth the statements are individually true and Statement II is the correct explanation of Statement I
- BBoth the statements are individually true but Statement II is not the correct explanation of Statement I
- CStatement I is true but Statement II is false
- DStatement I is false but Statement II is true
Explanation
A catalyst in powdered form exposes the maximum surface area, so statement II is true, and catalytic activity increases with available surface area, so hydrogenation is highest with the powdered catalyst and statement I is true. Since the high surface area is precisely what causes the higher activity, statement II is the correct explanation of statement I.