I am having trouble with this Four compounds/molecules are sitting on a bench. T

Question

I am having trouble with this

Four compounds/molecules are sitting on a bench. They all follow the same motif (i.e., CH3 - X) where X could be any element. We know the following values for the electronegativity difference between the carbon and the X. Compound A (0.5); Compound B (1.2); Compound C (0.1) and Compound D (2.1). Which of these compounds would be considered the most ionic?

A. Compound A

B. Compound B

C. Compound C

D. Compound D

Which of the following compounds could behave as a Lewis base? Pick all that apply!

A. NH3

B. BH3

C. H2O

D. CH4

E. CH2O

Which salt would you expect to be the least water soluble?

A. potassium fluoride

B. lithium fluoride

C. sodium fluoride

D. rubidium fluoride

Explanation / Answer

D. Compound D

The electronegativity difference between two element are more. It is more ionic

A. NH3

NH3 is lewis base.It is lone pair of lectron donor.

B. lithium fluoride

LiF is least ionic charecter . it is less soluble in water.

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