What three alkenes yield 3-methylpentane on catalytic hydrogenation?
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What three alkenes yield 3-methylpentane on catalytic hydrogenation?
What three alkenes yield 3-methylpentane on catalytic hydrogenation?
1. Why do you think alkenes would rather undergo catalytic hydrogenation by syn addition rather than anti addition? Support your answer with an example. (4 pts) 2. What does the word stereoselectivity mean and how does it apply to the catalytic hydrogenation of alkenes? (2 pts) 3. What is the correlation between the heat of hydrogenation of an alkene and its degree of substitution? (2 pts)
Please explain 3. The conversion of an alkene into an alkane via catalytic hydrogenation (with H2 and Pd-C) is always exothermic. The amount of energy released (known as the heat of hydrogenation) depends on the stability of the double bond undergoing hydrogenation; the more stable the double bond, the lower (less exothermic) the heat of hydrogenation. Alkene Type Stability (1-7) Heat of Hydrogenation ethene (CH,-CH2) I least stable 7 monosubstituted cis disubstituted geminal disubstituted trans disubstituted trisubstituted -32.8 kcal/mol -30.1...
what is the major product. show step-by-step mechanism? 20) Which of the following alkenes yield(s) 3-bromo-3-methylpentane as the major product upon addition of HBr? (2 points) A) I and II only B) 111 only C) I, II, and III only D) all of them E) none of them 21) Give the major organie product for the reaction. (3 points) CH.CH CHCCH excesS HBr
SUBMITTED Ozonolysis (O3 in CH2C12) of compound A gives formaldehyde and 2-butanone. Catalytic hydrogenation of A gave compound B. Compound B is likely to be 2-methyl-2-pentene O2-methylpentane O pentane O butane 2-methylbutane The compound shown below AR
please give detailed explanation comparing catalytic hydrogenation and metal hydride reduction Both catalytic hydrogenation and a metal hydride reduction can convert a C=0 to CHOH group. Please describe the differences between two types of reactions.
which of the following can be used as a catalyst for the catalytic hrdrogenafion of alkenes and alkynes to produce alkanes nickel bromide Question 3 1 pts Which of the following statements are true? Mark all that apply. Lithium aluminum hydride is generally dissolved in ether Sodium borohydride is generally dissolved in alcohol Upon treatment with sodium borohydride acetone will be reduced to 1-propanol An acidic aqueous workup is required when using lithium aluminum hydride to protonate the alkoxide 1...
Draw the three alkenes, each of formula C5H10, that will form 2-methylbutane upon hydrogenation?
Draw the three alkenes, each of formula C_5H_10, that will form 2-methylbutane upon hydrogenation.
Catalytic hydrogenation, used in the food industry, converts double bonds in the fatty acids of vegetable oil triacylglycerols to -CH2-CH2-. Identify statements that correctly describe characteristics of catalytically hydrogenated food oils. □ □ □ Partially hydrogenated oils may cause health risks due to the presence of trans fats. Hydrogenating oils reduces shelf-life but creates a good source of healthy fats. Catalytic hydrogenation reduces double bonds, increasing melting temperature. Catalytic hydrogenation oxidizes double bonds, decreasing melting temperature. Catalytic hydrogenation combats the...