Answer:
D
Explanation:
Double Displacement reaction
Both sides are balanced with option D
Answer:
1. The metal atom/ion in these compounds are Ni and Ni2+ respectively.
2. The electrons from s oribital will jump to d orbital and so I expect CO to donate electron pairs in 4p and 4s orbitals and form sp3 hybridisation.
C. Weak acid is the correct answer
