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Sudgen supported the theory of octet rule by saying that the Concept of octet can never be disobeyed as was overruled by SIDGEWICK by announcing the maximum rule of co-valency. Sudgen took into account the example of phosphorous pentachloride and told that out of five bonds two are singlet i.e., made by sharing of one electron between two atoms donated by only one participent. in short it is the bond consisting only on one electron and is relatively longer than a c0valent bond and is known as half covanlent bond

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What is the different between singlet and triplet?

Singlet and triplet refers to the spin states of electrons in a molecule. Singlet state has two electrons with opposite spins, while triplet state has two electrons with parallel spins. The difference between them affects the physical and chemical properties of the molecule.


What are some physical differences between the two main allotropes of oxygen?

The two allotropes are the diatomic form singlet oxygen and triatomic ozone. Other forms do exist at high pressure etc. An obvious difference is the number of atoms. Ozone is a dense blue gas which much more soluble than singlet, but it is unstable so has a half life of 12 hours in air. Both have similar oxidation powers. Ozone has a bond angle of 116.78 degrees whereas singlet has no bond angle.


Can you explain the difference between the Hofmann rule and the Zaitsev rule in organic chemistry?

The Hofmann rule states that in a reaction where a hydrogen halide is removed from an alkyl halide to form an alkene, the major product will be the one with the least substituted double bond. The Zaitsev rule, on the other hand, states that the major product will be the one with the most substituted double bond.


How do singlet and triplet states play a role in photochemistry processes?

Singlet and triplet states are different energy levels that molecules can be in during photochemical reactions. Singlet states are more common and usually lead to the desired chemical reactions, while triplet states can sometimes cause unwanted side reactions. Understanding and controlling these states is important in optimizing photochemical processes.


In order to satisfy the octet rule which of the following molecular formulae must contain a double bond?

Molecular formulae that must contain a double bond in order to satisfy the octet rule are those of compounds like O2, HCN, and CO2.