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Effects of substituents on the acidity of phenols:
Existence of electron attracting group, (for example -NO2, -X, - NR+3, -CN, -CHO, -COOH) on the benzene ring increases the acidity of phenol since it enables the ring to draw much more electrons from the phenoxy oxygen and so releasing easily the proton. Additionally, the particular effect is more while the substituent is available on o- or p-position as compared to in m-position to the phenolic group.
Low value of electrode potential(Mn3+/Mn2+) for scandium shows Sc3+ is stable while comparitively low value of electrode potential(Mn3+/Mn2+) for vanadium shows Vn2+is stable.Why?
types of electrochemical cells any 5
The extraction of sodium metal
Metals: Iron : 1. Most automobiles, machine tools, building parts, the hulls of large ships, and machine parts are made out of iron. (Iron metal is strong but is quite
redox reaction of ethanal,caustic soda&copper hydroxide
energy order of octahedral, tetrahdral, squareplaner.
Aldehydes and Ketones Carbonyl compounds are of two types, ketones and aldehydes. Both of them comprise a carbon-oxygen double bond frequently known as carbonyl group.
Uses Trihydric alcohols (a) It is used as antifreeze in automobile radiator. (b) It is used in the preparation of good quality of soap-hand lotions shaving creams and tooth
Why do we have Li2Co3 while other akalie metals behaviour
The wave nature of an electron was first given by: (1) De-Broglie (2)Heisenberg (3)Mosley (4)Sommerfield Ans: De-Broglie
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