1. What term describes the addition of two groups across a double bond if the gr
ID: 555402 • Letter: 1
Question
1. What term describes the addition of two groups across a double bond if the groups end up on opposite sides of the molecule? A. Anti B. Syn C. Saturated D. Unsaturated 2. What is the major organic product(s) of the reaction shown? (ignore stereochemistry) H2SO CH OH : OH : OCH3 : OCH3 . According to the Hammond Postulate, which statement is true? A. In an exothermic reaction the structure and the energy of the transition state most resembles that of the products In an exothermic reaction the structure of the transition state most resembles that of the products but the energy of the transition state most resembles that of the reactants In an endothermic reaction the structure and the energy of the transition state most resembles that of the products In an endothermic reaction the structure of the transition state most resembles that of the products but the energy of the transition state most resembles that of the reactants B. C. D. 4. Which term is used when a hydrogen atom adds to the least substituted side of a double bond, and an electronegative group adds to the most substituted side? A. Tautomerism B. Markovnikov addition C. Syn-addition D. Anti-additionExplanation / Answer
1. Ans : Anti. (Both groups are opposite is called anti).
2. Ans: C. (Methanol will add to more substitued carbon).
3. Ans : C (Hammond postulate tells that in endothermic reaction transition state energy is close to the products).
4. Ans : B (The addition is called Markovnikov addition).
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