KCET2015ChemistryCoordination Compounds
How many ions per molecule are produced in the solution when Mohr salt is dissolved in excess of water?
Options
- A( 04 )
- B( 05 )
- C( 06 )
- D( 10 )
Correct answer
B. ( 05 )
Step-by-step solution
The Mohr salt is a double salt of iron and ammoniumsulphates, therefore, on dissociation of the Mohr salt into water it dissociates to ( Fe ²⁺, NH ₄⁺ )and ( SO ₄ ²⁻ ) ions. ( FeSO ₄ ( NH ₄ )₂ SO ₄ 6 H ₂ O _ - ) Excess ( H ₂ O ) Therefore, total number of ions ( =(1)+(2)+(2)=5 )