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This cycloaddition reaction involves sixteen electrons; hence, it must be suprafacial on one component and antarafacial on the other. Thus, it must be a [14s + 2a] or a [14a + 2s] cycloaddition. The heptafulvene molecule is large enough that its p-electron system can twist without introducing too much strain or without losing too much p-electron overlap; hence, the cycloaddition is a [14a + 2s] process. In either case, the product has the following stereochemistry:
Why does NO2 dimerise? a) Give an example of linkage isomerism. b) A solution of KOH hydrolyses CH3CH2CH2CH2Cl and CH3CH2CH2Cl. Which one of these is more easily hydrolysed?
properties
Q. Briefly explain acid-base titration ? Ans. A valuable laboratory technique used by chemists is called an acid-base titration. A titration is a process in which the c
A 4-m long curved gate is located in the side of a reservoir containing water as shown in Figure. Determine the magnitude of the horizontal and vertical components of the force of
what are the methods of expressing the mathematical concentration of solutions.?
(i) How would you account for the following: (a) The transition elements exhibit high enthalpies of atomization. (b) The 4d and 5d series of the transition metals have more
Ask quAssuming that the ion formed has a noble gas configuration, write a chemical equation that shows the formation of an anion from a neutral selenium atom. estion #Minimum 100
Electrolysis of Water in the Presence of an Indicator • Place ~ 50 mL of the thawed cabbage juice in the same glass container (after rinsing) used in Step 1. • Insert the electro
Measure the thermodynamic properties (reaction enthalpy, entropy, and Gibbs energy) for this reaction under standard conditions. Is the reaction exothermic or endothermic? Is i
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