Which substance listed below is a polar molecule? all of the compounds nh41+ sicl4 cl2o none of the compounds?

and

Explanation:

Hello,

In this case, in order to know whether a molecule is polar or not, the difference between the electronegativities of the bonding elements must be within the rank 0.7 and 1.6. In this manner, such difference is computed as follows for the given compounds:

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In such a way, both and are polar molecules unlike which is apolar.

Best regards.

well in order to answer this question you have to provide more information < 3

i think it's letter a.