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Explain rules of pericyclic
The pericyclic selection rules say absolutely nothing about the position of equilibrium in every case. These rules refer to rates of reactions, not to equilibrium constants. Other considerations must be used to decide on the position of equilibrium. The point of the problem is for you to use what you have learned about the relative energies of molecules; the molecule of lower energy is favored in each equilibrium.
(b) The left side of the equation is favored at equilibrium because the double bonds have more alkyl branches. (Alkyl substitution stabilizes a double bond.)
(d) The right side of the equation is favored at equilibrium because single product is aromatic and thus particularly stable, and the other product is volatile (ethylene is a gas)
a. 'Hormones are chemical messengers.' Explain? b. Name the main disease caused due to lack of the vitamin and its source in each of the following: A, B 6 and E.
reaction of ammonium molybdate with phosphate power point
formula of acetic acid
The number of unpaired electrons in nitrogen is: (1) 1 (2) 3 (3) 2 (4) None of these Ans: 3
synthesis, posted date 1/12/2013 7;26;41 pm\location ;austeralia
The increasing order (lowest first) for the values of e/m (charge/mass) for: (1) e,p,n,a (2) n,p,e,a, (3) n,p,a,e,
Phenols : Physical properties: 1.Low molecular weight phenols are normally liquids or low melting solids 2.Due to H- bonding ,most low molecular weight phenols are water soluble 3.
Show by means of equations and reagents, how the following conversion would be achieved? Propyne to butanoic acid
Position isomerism: It is due to the difference in the position of the substituent atom or group or an unsaturated linkage in similar carbon chain. A. Carboxylic, aldehydes
I want to know about 3 laws of crystallography,there are Law of constancy of inter facial angles,Law of rational indices,Law of symmetry.
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