Which of the following is the best statement about the bond angle indicated by the double arrow in the diagram. The bond angle indicated is exactly 109.5° The bond angle indicated is less than 100.5° The bond angle indicated is less than 90° The bond angle indicated is less than 120°. The bond angle indicated is exactly 120°. The bond angle indicated is exactly 90°
Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
![Part A
Below is a cartoon drawing of a seesaw molecular geometry which is based upon the trigonal bipyramidal electron group geometry.
Which of the following is the best statement about the bond angle indicated by the double arrow in the diagram.
The bond angle indicated is exactly 109.5°
The bond angle indicated is less than 109.5°
The bond angle indicated is less than 90°
The bond angle indicated is less than 120°.
The bond angle indicated is exactly 120°.
The bond angle indicated is exactly 90°
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Part B
The bond angle indicated in the diagram above is less than 120°
Choose the best ending to this sentence.
because the bonding electron pairs attract each other more, making the angle less.
because the atoms at the end of the bonding pairs of electrons attract each other more.
because the bonding pair of electrons making up the bond angle are attracted by the lone pair(s) of electrons on the other side of the central atom.
because the lone pair(s) of electrons on the central atom occupy more space on the central atom and repel the bonding pairs more.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe87322b1-ab82-4888-86b6-d36e47377208%2Fc460d1ac-684a-47d9-a8f6-1ffadb371137%2Ftcfzja9_processed.png&w=3840&q=75)
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