Rotom is not in the Pearl Pokedex.
Rotom is number 152 in the Sinnoh Pokedex.
Rotom is #479 in the national pokedex, and it is an Electric-Ghost type Pokemon.
In the sinnoh pokedex rotom is number 152 but in the national pokedex rotom is number 479 and chickorita is number 152
it is rotom
Number 152 is Rotom on platinum :)
For the Sinnoh Pokedex: Rotom For the National Pokedex: Chikorita
rotom
rotom
You can't obtain a Rotom in Pokemon Soul Silver. Instead, you have to trade it from Diamond, Pearl, and Platinum, and Rotom appears near the TV in the Old Chateau once you get the National Pokedex in Diamond, Pearl, and Platinum.
Rotom
Rotom.
The 152 Pokemon in the Pokedex is Rotom, not the other Rotom's just electric Rotom