why are gem diols unstable?
429208
Gem diols are unstable because the OH(alcohol) groups are present on a single carbon. ... Geminal diols are unstable mainly due to the fact that two oxygen atoms on the same carbon leads to more lone pair-lone pair repulsion.
1081846
It is because of the resonance of aryl halides which makes it stable and thus has less reactivity. whereas the alkyl halides doesnot have any resonance so to get stability it undergoes hydrolysis. Here the aryl halide is already stable and so it doesnot react.
683852
Because NH3 is an excellent leaving group - even better than H20. Another way to think about it is that good leaving groups are weak Lewis bases.
157173
It is the subliminal force of the harmonic series that forces the tritone when sung in its context to be unstable because it does not fit like the lower elements of the series and seeks that resolution to the stability of tonic. That is why, in rather low tech terms that the tri-tones sound unstable.
1059817
Phenol is far more acidic than methanol. This is because the phenolate conjugate base is resonance stabilised. The methoxide conjugate base has no such stabilisation, and therefore is formed much more reluctantly.
1311583
A diol is a chemical compound containing two hydroxyl groups (−OH groups). An aliphatic diol is also called a glycol. This pairing of functional groups is pervasive, and many subcategories have been identified. The most common industrial diol is ethylene glycol.
738846
NF3 is stable but ncl3 is explosive. ... Also since chlorine atoms are larger than fluorine, the lone pair-lone pair and lone-pair bond-pair repulsion are also larger rendering nitrogen trichloride even more unstable.
785880
Aro don't like strong current flow tank, this will make them stress and unstable. The reason for using current flow or wavemake by ppl is mainly for breaking up fights among comm's.
13091
Due to small size of S, it cannot accommodate 6 large Cl atoms, hence SCl6 doesn't exist. Also due to comparatively low electronegativity of Cl, it cannot cause promotion of electron in S to S(VI).
1080836
Hydrogen peroxide is unstable and slowly decomposes in the presence of light.
903236
Phenol is a very weak acid and the position of equilibrium lies well to the left. Phenol can lose a hydrogen ion because the phenoxide ion formed is stabilised to some extent. The negative charge on the oxygen atom is delocalised around the ring. The more stable the ion is, the more likely it is to form.
871303
This means that zircon gems will likely be smaller than topaz gems of the same weight. Both gems are susceptible to abrasions and breakage, making careful handling particularly important. Zircon's composition, more brittle in comparison to topaz, limits the shapes cutters are able to make with the gem.
568340
I- is much larger in size, so has higher tendency to lose electron, and hence is a good reducing agent. I- reduces Fe3+ to Fe2+ and itself gets oxidised to I2, hence FeI3 is unstable. ... So, it being an oxidising agent oxidises Fe2+ to Fe3+, which favours formation of FeCl3 and makes it stable.
340091
Oils that are too thin can run into this issue, so you may want to try some thicker oils or distillates the next time you hit up the dispensary or, if you're making your own, err on the thicker side. If you're already using an oil with thick viscosity, your CCELL coil may be clogged and need a bit of cleaning.
1032594
Although the aldehydes and ketones are highly polar molecules, they don't have any hydrogen atoms attached directly to the oxygen, and so they can't hydrogen bond with each other.
1101657
“Opal and Peach is an unreliable firm. Purchaser beware. ... I like to recommend staying away from firms which can be like this. Too good to be true.
452758
There are two circumstances under which an acid would lose potency upon long storage: ... If the container is not well-sealed, some of the acid (which has its own vapor pressure independent of the solvent) will escape over time.