NTA Abhyas NEET2020Chemistryp Block Elements (Group 13 & 14)Practice
Pick out the incorrect statement about CO.
Options
- AIn laboratory it is prepared by dehydrating HCOOH with conc. H 2 S O 4
- BCO is neutral oxide and acts as a fuel
- CIt reduces aqueous solution of P d C l 2 to metallic Pd
- DCO forms complex with haemoglobin and this complex is less stable than oxyhaemoglobin
Correct answer
D. CO forms complex with haemoglobin and this complex is less stable than oxyhaemoglobin
Step-by-step solution
Here option D is incorrect statement as the complex formed by CO with haemoglobin is more stable than oxyhaemoglobin. Rest other are correct. H C O O H → H 2 S O 4 - H 2 O C O 2 C O + O 2 → 2 C O 2 ; Δ H ° = - 565 kJ mo l - 1 C O + P d C l 2 + H 2 O → P d + C O 2 + 2 H C l