BIOCHEMISTRY
POLAR AND NONPOLAR MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Trigonal Pyramidal
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Trigonal Bipyramidal
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Bent
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Linear
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Detailed explanation-1: -Looking at its Lewis structure we can state that molecular geometry of PH3 is trigonal pyramidal.
Detailed explanation-2: -The trigonal pyramidal is the shape of PH3. There are four atoms of phosphorus in the molecular geometry of the compound. There are a total of four valence electron pairs revolving around the phosphorus atom.
Detailed explanation-3: -So, the most number of free electrons in the molecule is 5. In this, the phosphorous atom shares three electrons with three hydrogen atoms. The lone pair of electrons leads to the trigonal pyramidal shape.
Detailed explanation-4: -The three F atoms bond to the P, but this leaves a lone pair as the fourth electron pair in the valence shell of phosphorus. These nonbonding electrons repel the three bonding pairs and create the 3-dimensional geometry rather than a simple trigonal planar shape. Was this answer helpful?