What are two poisonous snake?

No snake is. The longest snake in the world is the reticulated python, which can grow to over 30 feet (9m) long, but it is not venomous. The most venomous snake in the world is the inland taipan, also called the fierce snake, but it rarely gets over 8 feet (2.4m) long. The longest venomous snake in the world is the king cobra, which be up to 18 feet (5.5m) long.