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Delocalizing the radical ion stabilizes the transition state structure. As a result, the energy of activation decreases, enhancing the rate of the overall reaction. According to the captodative effect, the rate of a reaction is the greatest when both the EDG and EWG are able to delocalize the radical ion in the transition state structure. [7]
An electron donating group (EDG) or electron releasing group (ERG, Z in structural formulas) is an atom or functional group that donates some of its electron density into a conjugated π system via resonance (mesomerism) or inductive effects (or induction)—called +M or +I effects, respectively—thus making the π system more nucleophilic.
It is usually taken by students during the final two years of Senior secondary school (Grade 10 & 11 (usually ages 15–16)) or external (non-school) candidate. The exam is usually held in December. The exams are held in three mediums Sinhala , Tamil and English .
Sri Lanka's commercial and economic centres, primarily the capitals of the nine provinces are connected by the "A-Grade" roads which are categorically organised and marked. Furthermore, "B-Grade" roads, also paved and marked, connect district capitals within provinces. The grand total of A, B and E grade roads are estimated at 12,379.49 km. [144]
The Central Bank of Sri Lanka (abbr. CBSL; Sinhala: ශ්රී ලංකා මහ බැංකුව, romanized: Sri Lanka Maha Bankuwa) is the monetary authority of Sri Lanka. It was established in 1950 under the Monetary Law Act No.58 of 1949 (MLA) and in terms of the Central Bank of Sri Lanka Act No. 16 of 2023, the CBSL is a body ...
A young Russian woman enjoying the beach has died after she was swept away by a large wave in Thailand, multiple news outlets report. Kamilla Beliatskaya, 24, was in Koh Samui, Thailand, on Friday ...
Causality is an influence by which one event, process, state, or object (a cause) contributes to the production of another event, process, state, or object (an effect) where the cause is at least partly responsible for the effect, and the effect is at least partly dependent on the cause. [1]
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