Question

Which is the formula for a binary ionic compound composed of
iodine and sodium?
a Ina
b Either INa or Nal is acceptable.
С
lodine and sodium do not form a binary ionic
compound.
d Nal

Answer 1

Either NaI or INa are acceptable formulae for sodium iodide, which is indeed a binary ionic compound. So, the correct answer would be B.

Answer 2

Answer:

D. Nal

Explanation:

Took a K12 test and it was correct! :3 Hope this helps!