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are all tetrahedral bonds are nonpolar molecules?

are all tetrahedral bonds are nonpolar molecules?
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Answer #1

The structure of Tetrahedral molecule.

The tetrahedral molecule will be polar or non polar depends upon the atoms attached to the central atom.

Suppose CH4 -> Here ' C ' is central atom & 4 ' H ' atoms are 109.5 angle , All bond lengths are equal.

There are electnonnegetivity difference between ' e ' & ' H ' but no net polarity. Overall polarity is zero for the molecule, so CH4 is non - polar.

Let's take CA3 -> Here ' C ' is cevtral atom & 3 ' H ' & ' C ' atoms are at angle 109.5o bond angle ,

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