The geometry of paramagnetic nickel complex [NiCl₄]²⁻ is:
d⸠paramagnetic prefers tetrahedral.
tetrahedral
octahedral
square planar
distorted octahedral
Ni²⁺ in [NiCl₄]²⁻ is 3d⁸ and paramagnetic, hence adopts tetrahedral geometry. Square planar is typical for diamagnetic d⁸ complexes.
The alternating current \( I \) in an inductor is observed to vary with time \( t \) as shown in the graph for a cycle.
Which one of the following graphs is the correct representation of wave form of voltage \( V \) with time \( t \)?}