Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 202229 JuneMorning Shift
Exam
JEE Main
Year
2022
Date
29 June
Shift
Morning Shift
Subject
Chemistry
Chapter
Hydrocarbons

JEE Main 2022 · 29 June · Morning Shift · Chemistry · Hydrocarbons

Two isomers ' A ' and ' B ' with molecular formula C _ 4 H _ 8 give...

Two isomers 'AA' and 'BB' with molecular formula C4H8{C}_{4}{H}_{8} give different products on oxidation with KMnO4{KMnO}_{4} in acidic medium. Isomer 'AA' on reaction with KMnO4/H+{KMnO}_{4} / {H}^{+} results in effervescence of a gas and gives ketone. The compound 'AA' isTwo isomers ' A ' and ' B ' with molecular formula C _ 4 H _ 8 give different products on oxidation with KMnO _ 4 in

Options

  1. ABut-11-ene.
  2. Bcis-But-22-ene.
  3. Ctrans-But-22-ene.
  4. D22-methyl propene.

Correct answer

D. 22-methyl propene.

Step-by-step solution

The formula C4H8{C}_{4}{H}_{8} shows that it has degree of unsaturation as one. And since it react with KMnO4{KMnO}_{4} in acidic medium then it should be an alkene. Only the terminal alkene gives effervescence of carbon dioxide gas. So, it should be a terminal alkene. and other product is ketone so, it should have a 3 degree carbon too. Based on these we can say that the A is

Two isomers ' A ' and ' B ' with molecular formula C _ 4 H _ 8 give different products on oxidation with KMnO _ 4 in

Practice Hydrocarbons on Quantrex Academy →

More from Hydrocarbons

In the following reaction sequence, Q , R , S and T are the major products. The correct… JEE Advanced 2026Treatment of buta-1,3-diyne with NaNH_2 ( 2 equivalents), followed by reaction with… JEE Advanced 2026The List-II contains products obtained from the reaction of compounds in List-I with O_3… JEE Advanced 2026Natural rubber on complete ozonolysis ( O_3 /Zn- H_2O ) gives compound X as the major… JEE Advanced 2026An optically active alkyl bromide C _4 H _9 Br, reacts with ethanolic KOH to form major… JEE Main 2026An alkane (Y) requires 8 moles of oxygen for complete combustion and on chlorination with… JEE Main 2026R_f value for 2 -methylpropene in a solvent system (Ethyl acetate + ether) is 0.42 . 2… JEE Main 2026Given below are two statements: Statement I: Methane can be prepared by decarboxylation… JEE Main 2026 Full Hydrocarbons list All JEE Main PYQs