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A nucleophile is a chemical species that donates an electron pair to an electrophile to form a chemical bond in a reaction. All molecules or ions with a free pair of electrons or at least one pi bond can act as nucleophiles. Because nucleophiles donate electrons, they are by definition Lewis bases.
Nucleophilic describes the affinity of a nucleophile to the nuclei. Nucleophilicity, sometimes referred to as nucleophile strength, refers to a substance''s nucleophilic character and is often used to compare the affinity of atoms.
Neutral nucleophilic reactions with solvents such as alcohols and water are named solvolysis. Nucleophiles may take part in nucleophilic substitution, whereby a nucleophile becomes attracted to a full or partial positive charge.
what are the swelling properties of sephadex (all of them, ie. G-10,G-15,G-25,G-75,G-100,G-150,G-200)? How much do they each swell and in which conditions? Thank you
Calibration
conclusion on caustic soda
Consider a 2-component system of cyclooctane(1) and styrene(2) at 350 °C. Both component can be well described with the Soave-Redlich-Kwong equation of state in the mixed vapor and
Uses of Aromatic Nitro Compounds (a) Aromatic Nitro Compounds are used on account of their high polarity, aromatic nitro compounds are used as solvents. (b) Nitro compounds
The maximum number of electrons which each sub-shell can occupy is: (1) 2n 2 (2) 2n (3) 2 (2l+1) (4) (2l+1) Ans: 2
A electrovalent compound is made up of: (1) Electrically charged molecules (2) Neutral molecules (3) Neutral atoms (4) Electrically charged atoms or group of atoms
Explain the problems of flooding and channeling in packed tower
various concepts of acid and base
Q. Iron chloride forms various solid hydrates, all of which melt congruently. The temperatures t of aqueous solutions of various compositions that are saturated with respect to a s
Group which gives out electron pair to an electrophile.
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