How would the surface tension of water be affected if the water was a less polar molecule?

there would be more surface tension because it could not dissolve ionic solids.
the surface tension would be lower because it would not expand when freezing.
hydrogen bonds would be weaker and thus there would be less surface tension.
water would have more surface tension because the molecules would be further apart.

Hydrogen bonds would be weaker and thus there would be less surface tension.

Explanation:

Surface tension is the net downward force acting on the surface of liquids due to the cohesive nature of liquids.

Water molecules are bonded by strong hydrogen bonding between the hydrogen atom and the electronegative oxygen atom. Thus water molecules present on the surface are strongly attracted by the molecules present below the surface and thus act as a stretched membrane.  

If the polarity is less, the hydrogen bonds would be weaker and thus there will be less surface tension.

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explanation: