Question
Chemistry Question on Catalysis
Given below are two statements.
Statement I: Iron (III) catalyst, acidified K2Cr2O7 and neutral KMnO4 have the ability to oxidise I– to I2 independently.
Statement II: Manganate ion is paramagnetic in nature and involves pπ–pπ bonding.
In the light of the above statements, choose the correct answer from the options given below.
Both Statement I and Statement II are true
Both Statement I and Statement II are false
Statement I is true but Statement II is false
Statement I is false but Statement II is true
Both Statement I and Statement II are false
Solution
Manganate ion MnO42−has tetrahedral structure has only dπ–pπ π−bonds.
Fe3+ is not used as a catalyst in the conversion of I– to I2 by K2Cr2O7.
K2Cr2O7 oxidise I– in acidic medium easily.
The correct answer is (B): Both Statement I and Statement II are false