Home/Alkyl halides
E1 & E2
Question#1
When 2-bromopropane reacts with sodium ethoxide the major product is/are MDCAT2023
Question#2
In beta elimination , nucleophile attacks NUMS2015
Question#3
Pick correct pair about the difference between E1 and E2 mechanism of methyl bromide forming an alkene NUMS2019
Question#4
Pick correct pair about the difference between E1 and E2 mechanism of methyl bromide forming an alkene NUMS2019
Question#5
Acid catalyzed dehydration mechanism for alcohol is best described as a/an ETEA2011
Two electrons from oxygen is donated to a proton from sulfuric acid, to form alkyloxonium ion. Then.
the Base (HSO4– ) back-side attacks adjacent beta-hydrogen and the alkyloxonium ion leaves by making a double bond.
Question#6
When 2-bromo-2-methyl propane undergoes unimolecular elimination reaction, the product obtained will be ETEA2013
Question#7
In elimination reaction, ___________ is used MDCAT2017
Question#8
In elimination reaction, ___________ is used MDCAT2017
Question#9
When purely alcoholic solution of sodium/potassium hydroxide and halogen alkane are refluxed an alkene is produced
\( CH_3-CH_2-OH \ \xrightarrow[Alcohol]{KOH} H_2C=CH_2 \)
What type of mechanism of this reaction MDCAT2011
Strong base/ bulky base (t-butylO-, Alc.KOH) always give elimination reaction.
Question#10
Consider the reaction given below :
\( CH_3-CH_2-Br \ \xrightarrow[alcohol]{KOH} H_2C=CH_2 + HBr \)
Mechanism followed by the reaction is: MDCAT2016
Strong Nuc / Strong base( RO-,OH- ) with 1o Alkyl halide will always give SN2
Weak Nuc / Weak Base (H2O, ROH, RCOOH) with 3o Alkyl halide will always give SN1 or E1
Strong base/ bulky base (t-butylO-, Alc.KOH) always give elimination reaction.