Please help!

Which statement is NOT correct?

a) In an ionic compound, a metal and a non metal form a compound, and electrons are transferred from one to the other.

b) In an ionic compound, a metal and a polyatomic ion form a compound, and electrons are shared.

c) In both ionic and molecular compounds, valence electrons take part in bonding.

d) In a molecular compound, a non-metal and a non-metal form a compound, and electrons are shared

D is the answer

Explanation:

I'm pretty sure a molecular compound doesn't form between 2 non metals

...I think, but I can't remember

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

the correct answer is:

a. formation of precipitation