Retro (Past 13 Years) IIT - JEE Advance (Hydrocarbons) - JEE MCQ

An acyclic hydrocarbon P, having molecular formula C₆H₁₀, gave acetone as the only organic product through the following sequence of reactions, in which Q is an intermediate organic compound.

Q. The structure of the compound Q is

The maximum number of isomers (in cluding stereoisomers) that are possible on mono-chlorination of the following compound, is

CH₃CH₂CH (CH₃)CH₂CH₂

(2011, Integer Type)

The synthesis of 3 -octyne is achieved by adding a bromoalkane into a mixture of sodium amide and an alkyne. The bromoalkane and alkyne respectively are

(2010, Only One Option Correct Type)

The total number of cyclic isomers possible for a hydrocarbon with the molecular formula C₄H₆ is

(2010, Integer Type)

Passage for Q. N os. (8-9)

Schemes 1 and 2 describe sequential transformation of alkynes M and N. Consider only the major products formed in each step for both schemes.

Q. The product X is

(2010, Comprehension Type)

Schemes 1 and 2 describe sequential transformation of alkynes M and N. Consider only the major products formed in each step for both schemes.

Q. The correct statement with respect to product Y is

The number of stereoisomers obtained by bromination of trans-2-butene is

(2007, Only One Option Correct Type)

The reagent(s) for the following conversion,

is/are

(2007, Only One Option Correct Type)

 X in the above reaction is

[CPMT 1985; MP PET 1997; Roorkee Qualifying 1998; DPMT 2001]

 Identify the adduct.

(2006, Only One Option Correct Type)

Cyclohexene is best prepared from cyclohexanol by which of the following ?

(2005, Only One Option Correct Type)

1 -bromo-3-chlorocyclobutane when treated with two equivalents of Na, in the presence of ether which of the following will be formed?

(2005, Only One Option Correct Type)