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PCL5 is a stable molecule because phosphorus can accommodate more than 8 valence electrons due to its empty d orbitals in the third energy level. This allows for the formation of stable P-Cl bonds. In contrast, nitrogen in NCl5 does not have empty d orbitals to expand its valence shell beyond 8 electrons, making the molecule highly unstable.
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Pcl5 is formed but Ncl5 is not formed why?
NCl5 does not exist bcoz nitrogen atom does not have d-orbitals to accomodate electrons from chlorine atoms and nitrogen cant accomodate more than 8 electrons in its valence shell. so its covalency exists only upto four.... pcl5 exists bcoz phosphorus atom has vacant d orbitals to accomodate electrons and thus pcl5 exists
What is the reaction between pcl5 and pyridine?
The reaction between PCl5 and pyridine involves the substitution of one chlorine atom in PCl5 with a pyridine molecule to form an adduct called pyridinium chloride. The pyridine molecule replaces one of the chloride ions on PCl5, resulting in the formation of pyridinium chloride and releasing HCl as a byproduct.
Why is pcl5 an exception to the octet rule while pcl3 not?
PCl5 is an exception to the octet rule because phosphorus, the central atom, can expand its octet to accommodate more than eight electrons due to the availability of d-orbitals in its valence shell. In PCl5, phosphorus forms five bonds with chlorine atoms, allowing it to hold ten electrons. In contrast, PCl3 adheres to the octet rule, as phosphorus forms only three bonds with chlorine, resulting in a stable configuration with eight electrons around it. Thus, PCl5 exhibits expanded valence shell capabilities, while PCl3 does not.
Is PCl5 an electrolyte?
Yes, PCl5 is a binary molecular compound.
What kind of bond does PCl5 have?
PCl5 is covalent in the vapour phase with a trigonal biyramidal shape. It is ionic in the solid consisting of PCl4+ PCl6- In solution it can be covalent or ionic depending on the solvent.
Why PCl5 is used in organic rections than NCl5?
PCl5 is often preferred in organic reactions over NCl5 because it is a stronger and more reactive chlorinating agent. PCl5 has a greater ability to replace hydroxyl groups with chlorine atoms in organic molecules, leading to a higher yield of the desired chlorinated product. Additionally, PCl5 is easier to handle and less toxic compared to NCl5.
Pcl5 is formed but Ncl5 is not formed why?
NCl5 does not exist bcoz nitrogen atom does not have d-orbitals to accomodate electrons from chlorine atoms and nitrogen cant accomodate more than 8 electrons in its valence shell. so its covalency exists only upto four.... pcl5 exists bcoz phosphorus atom has vacant d orbitals to accomodate electrons and thus pcl5 exists
Why is PCL5 form but NCL5 not form?
PCl5 (phosphorus pentachloride) forms because phosphorus can expand its octet and accommodate more than eight electrons due to the availability of d-orbitals, allowing it to bond with five chlorine atoms. In contrast, NCl5 (nitrogen pentachloride) does not form because nitrogen cannot expand its octet; it only has four valence electrons and is limited to forming a maximum of four bonds, typically resulting in stable compounds like NCl3 (nitrogen trichloride). This limitation is due to nitrogen's smaller size and lack of available d-orbitals for bonding.
What is the reaction between pcl5 and pyridine?
The reaction between PCl5 and pyridine involves the substitution of one chlorine atom in PCl5 with a pyridine molecule to form an adduct called pyridinium chloride. The pyridine molecule replaces one of the chloride ions on PCl5, resulting in the formation of pyridinium chloride and releasing HCl as a byproduct.
How many chlorine atoms are there in one molecule of PCl5?
5, that's what Cl5 (usually written w/ a subscript) means
What is the decomposition reaction for PCl5?
The decomposition reaction for PCl5 is represented as follows: PCl5 (s) → PCl3 (g) + Cl2 (g). This reaction involves the breaking down of solid phosphorus pentachloride (PCl5) into gaseous phosphorus trichloride (PCl3) and chlorine gas (Cl2). The reaction is endothermic, requiring energy input to break the bonds within the PCl5 molecule.
Will A molecule with polar covalent bonds will definitely be a polar molecule?
not necessarily. if the individual dipoles cancel off, then the molecule will be non-polar. As in CCl4, PCl5 etc
Pcl5 plus H2O - h3po4 plus hcl?
Phosphorus pentachloride reacts violently with water and can form explosive mixtures with it. Nonetheless...P-Cl5 + 4H2O ----> H3PO4 + 5H-Clis a hydrolysis reaction (the addition of water to a molecule)
What are the intermolecular forces in PCl5?
In the solid PCl5 is ionic PCl4+ PCl6- In the gas and liquid phases molecular PCl5 is present which does not have a permanent dipole moment. The intermolecular force is a london dispersion force.
Why is pcl5 an exception to the octet rule while pcl3 not?
PCl5 is an exception to the octet rule because phosphorus, the central atom, can expand its octet to accommodate more than eight electrons due to the availability of d-orbitals in its valence shell. In PCl5, phosphorus forms five bonds with chlorine atoms, allowing it to hold ten electrons. In contrast, PCl3 adheres to the octet rule, as phosphorus forms only three bonds with chlorine, resulting in a stable configuration with eight electrons around it. Thus, PCl5 exhibits expanded valence shell capabilities, while PCl3 does not.
What is the difference between pcl3 and pcl5?
PCL3 is a molecular compound with a trigonal pyramidal shape, while PCl5 is a molecular compound with a trigonal bipyramidal shape. PCl3 contains three chlorine atoms, while PCl5 contains five chlorine atoms. Additionally, PCl5 is more reactive than PCl3 due to its higher number of chlorine atoms.
What is the oxidation state of PCl5?
The oxidation state of phosphorus in PCl5 is +5. Each chlorine atom contributes an oxidation state of -1, so the sum of the oxidation states in PCl5 equals the overall charge of the molecule, which is 0.
