Is king Cobra capable of killing all other snakes?

Is king Cobra capable of killing all other snakes ?

The king cobra's venom is effective against most snakes it encounters, including kraits and other cobras. The King cobra itself is immune to the toxins of the kraits and cobras, because in the course of thousands, perhaps even millions of years of evolution, king cobras have developed immunity to the venoms of its prey. It means that those king cobras that ate other venomous snakes but were bitten may die, leaving only those that were descendants of a single snake that had by chance evolved nerve receptors that are unaffected by the venom of its prey.

If there is a venomous snake that has a different kind of venom than the ones the king cobra has become immune to, then theoretically the king cobra can be killed. Rattlesnakes, for example, have different kinds of venoms than cobras. Some of them have haemotoxins or blood poisons, in addition to myotoxins, or venoms that attack muscles. Rattlesnakes may also have neurotoxins.

Since the king cobra did not evolve any immunity to these toxins that it has not encountered, it can indeed be killed by a rattlesnake if it was bitten. Of course, the king cobra may kill the rattlesnake before it had a chance to bite it. BTW, there are also videos of king cobras killing and eating vipers, so they may have developed immunity to viper venom, at least those species of vipers found within its range. Perhaps it has no immunity against rattlesnakes, but if the rattlesnakes have venom similar to the vipers the king cobra preys on, then it may have partial immunity against rattlesnake venom.