Which is the more stable anion?
The more polarizable the atom, the more stable the anion. Within a row of the periodic table, the more electronegative an atom, the more stable the anion.
Which is most stable carbocation?
tertiary carbocation
The carbocation bonded to three alkanes (tertiary carbocation) is the most stable, and thus the correct answer. Secondary carbocations will require more energy than tertiary, and primary carbocations will require the most energy.
Which of the following is more stable carbanion?
p-NO2-C6H4-CH-2 is the most stable carbanion since electron withdrawing – NO2 group stabilises the carbanion by dispersal of the -ve charge.
Is BR more stable than F?
The stability of oxides of iodine is greater than those of chlorine while bromine oxides are the least stable. Thus, the stability of oxides of halogens decreases in the order : I > Cl > Br > F.
Is O or S more stable?
The radius of a sulfur atom is about 60\% larger than that of an oxygen atom. As a result, it is harder for sulfur atoms to come close enough together to form bonds. S=S double bonds are therefore much weaker than O=O. double bonds.
Which carbocation is least stable?
H3C+ is the least stable carbocation because it has no α-H.
Which of the following carbanion is most stable methyl?
Answer:primary carbanion is the most stable carbanion. Explanation: Primary carbanion has only one alkyl group and the increase in electron density is less on the carbon atom. Hence primary carbanion is most stable.
Which one of the carbanion is least stable?
HC≡ CH(25);(C6H5)3CH(31.5),CH4(48),(CH3)3CH(.> 51)Thus(CH3)3C− is least stable.
Which is more stable anion F or Cl?
its of the order Cl- > F- > Br- > I- its so because I is very large atom and hence a negative charge destabilizes it because the extra electron is not held very tightly but Cl- is more stable than F- because Flourine has no d orbital due to which an extra electron faces too much repulsion and destabilizes the F atom .
Which is more stable Br or Cl?
Bromin is more stable than the Chlorine. Br is more stable than Cl because the more stable the reactant is, the less reactive it will be.
Which of the following is most stable anion COO?
By releasing electron density towards the negatively charged C atom of carbanion, they intensify its negative charge and destabilize the carbanion. Thus, the stability of carbanions decreases with the increase in the number of alkyl groups.As a result, methyl anion, CH3:- having no alkyl group is the most stable.
Why is the cation (C6H5)3C+ stable?
Hence, the triphenylmethyl cation, (C6H5)3C+ is stable because it has many resonance structures. However, the resonance overlap of the π orbitals is not perfect because steric hindrance forces the ion to have a propeller shape. Triphenylmethyl (Adapted from Schoolbag.info)
What is the most stable cation in organic chemistry?
More stable is the tricyclopropylmethyl cation. The bent bonds of the cyclopropane ring can overlap with the empty p orbital without steric hindrance. Nothing beats the stability of aromatic cations like cyclopropenium and cycloheptatrienylium (tropylium) cations.
Why is (C6H5)3C+ a stable stabilizer?
Neighboring double bonds are better stabilizers, because they can donate electrons by resonance. Hence, the triphenylmethyl cation, (C6H5)3C+ is stable because it has many resonance structures. However, the resonance overlap of the π orbitals is not perfect because steric hindrance forces the ion to have a propeller shape.
What is the most stable cation for cyclopropane?
More stable is the tricyclopropylmethyl cation. The bent bonds of the cyclopropane ring can overlap with the empty p orbital without steric hindrance.