Consider the following reaction and identify the reagent required for the reacti
ID: 1063965 • Letter: C
Question
Consider the following reaction and identify the reagent required for the reaction Pd/CaCO_3 KMnO_4/Ethanol BH3/THF H_2SO_4 none of these Identify the alkyne that cannot make an acetylide anion in the presence of Sodium amide. 3-Octyne 2-Hexyne 2-Decene 2-pentyne All of them Identify the correct IUPAC name of the following structure Cl-CH_2-CH_2-CH identicalto CH-CH_2-CH_2-CH_2-Br l-Chloro-7-bromo-2-heptene 7-Bromo-l-chloro-2-heptene 7-Bromo-l-chloro-3-heptene 1-Bromo-7-chloro-4-heptene Identify the halide that most reactive to go SN^2 substitution I II I and II I, II, and III All of them Elimination reaction of 3-Bromo2. 2-Methyl-2-pentene 2-Methyl-3-pentene 3-Methyl-2-pentene None of them All of themExplanation / Answer
6. option E
A triple bond is oxidised to carboxylic acid with strong oxidising agents like KMNo4 in acidic medium. not in alcoholic medium.
7.option E
ONly 1- alkynes form alkynide ions with sodamide. So none can form alkynide in the gven examples
8. option C
At the first point of difference doible bond occurs at 3 carbon. Thus the name is 7-bromo-1-chloro -3-heptene
9.For Sn2 steric factor pplays an important role. Methyl bromide is the one with least steric hindrance for the backside nuclophilic attack in SN2.
Thus option A.
10. Option A
Elimination of 3-bromo2-methyl pentane predominantly gives the Saytzef product, tht is the more substituted alkene. Here it is 2-methyl-2-pentene.