Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[EX Q]: Hybridization model model helps explain molecules with double or triple bonds.
[EX A]: Which model helps explain molecules with double or triple bonds?

[EX Q]: A human cannot survive the loss of the liver of the following.
[EX A]: A human CANNOT survive the loss of which of the following?

[EX Q]: Chlorine is a nonmetal and gains one electron in becoming a anion.
[EX A]:
Chlorine is a nonmetal and gains one electron in becoming a what?