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padilas [110]
3 years ago
5

g All of the molecules below have polar bonds but only one of the molecules is a polar molecule. Which one is a polar molecule?

A) C2F2 B) C2Cl4 C) CO2 D) NF3 E) CF4

Chemistry
1 answer:
lbvjy [14]3 years ago
4 0

Answer: NF_3

Explanation:

Geometrical symmetry of the molecule and the polarity of the bonds determine the polarity of the molecule.

The molecule that has zero dipole moment that means it is a geometrically symmetric molecule and the molecule which has some net dipole moment means it is a geometrically asymmetric molecule.

As the molecule is symmetric, the dipole moment will be zero as dipole moments cancel each other and the molecule will be non-polar.

As the molecule is asymmetric, the dipole moment will not be zero and the molecule will be polar.

Example: NF_3

Thus, we can say that NF_3 is a polar molecule.

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