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Question

Which one of the following pairs of molecules will have zero dipole moments for both members?

A
NO2 and CO2
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B
NO2 and O3
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C
SiF4 and CO2
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D
SiF4 and NO2
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Solution

The correct option is A SiF4 and CO2
CO2 (O=C=O) is a linear symmetrical molecule so it will have zero dipole moment.

Also, SiF4 has a symmetrical tetrahedral structure with zero dipole moment.

So, option C is correct.

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