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The number of non-polar molecules from the following is _____. HF, H2O, SO2, H2, CO2, CH4, NH3, HCl, CHCl3, BF3

1. 2
2. 3
3. 4
4. 5

Correct answer: 4

Solution

Non-polar molecules are those that have an even distribution of charge, resulting in no dipole moment. In the given list, CO2, CH4, and BF3 are non-polar due to their symmetrical shapes, and H2 is also non-polar as it consists of two identical atoms, making the total count of non-polar molecules four.

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