Home
Class 11
CHEMISTRY
There are six isomeric alkenes (A, B, C,...

There are six isomeric alkenes (A, B, C, D, E, and F) that require 1 mol of `H_(2)` per mole of alkene for hydrogenation and give the same product (G) on hydrogenation. G is an alkane having the lowest molecular mass and is optically active. Write the structure of compounds from A to G.

Text Solution

AI Generated Solution

To solve the problem, we need to identify six isomeric alkenes (A, B, C, D, E, and F) that can be hydrogenated to produce the same alkane (G), which is optically active and has the lowest molecular mass. ### Step-by-Step Solution: 1. **Identify the Alkane (G)**: - Since G is the lowest molecular mass alkane and is optically active, it must have a chiral center. The simplest alkane that meets these criteria is 2-methylpropane (or isobutane), which has the formula C4H10. However, to be optically active, we need a compound with a chiral carbon. - The simplest optically active alkane is 2-pentanol (C5H12), which can be derived from 2-pentene (C5H10) upon hydrogenation. ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALKANES AND CYCLOALKANES

    CENGAGE CHEMISTRY ENGLISH|Exercise Paragraph for problem|24 Videos

  • ALKANES AND CYCLOALKANES

    CENGAGE CHEMISTRY ENGLISH|Exercise True and False|1 Videos

  • ALKANES AND CYCLOALKANES

    CENGAGE CHEMISTRY ENGLISH|Exercise SOLVED EXAMPLES|19 Videos

  • ALKENES AND ALKADIENES

    CENGAGE CHEMISTRY ENGLISH|Exercise Single correct Answer|14 Videos

Similar Questions

Explore conceptually related problems

There are five isomeric alkenes (A, B, C, D, and E) that require 1 mol of H_(2) per mole of alkene for hydrogenation and give the same product (F) on hydrogenation. F is an alkane having the lowest molecular mass and is opticalar mass and is optically active. Write the structures of the compounds from A to F.

Give the structure of an optically active alkene (A) having the lowest molecular mass, which on catalytic hydrogenation gives an optically inactive compound (B) .

Knowledge Check

  • An optically active compound A with molecular formula C_8 H_(14) undergoes catalytic hydrogenation to give meso compound, the structure of (A) is :

    A
    B
    C
    D

    • Similar Questions

    Explore conceptually related problems

    Give the structure of an optically active alkyne (A) having the lowest molecular mass, which on hydrogenation with Lindlard's catalyst and Birch reduction gives the same lowest molecular mass optically active alkene.

    An optically active alcohol A (C_(6)H_(10)O) absorbs 2 mol of hydrogen per mole of A upon catalytic hydrogenation and gives a product B. The compound B is resistant to oxidation by CrO_(3) and does not show any optical activity Deduce the structures of A and B.

    Compound (X) on complete catalytic hydrogenation with H_2//Pt gives an alkane. The number of moles of H_2 required per mole of compound (X) is:

    Carbene intermediates are produced by the photolysis of diazomethane (CH_2N_2) or kenene (CH_2 = C = O) . They are also produced by the reaction of CHX_3 with base or by Simmons-Smith reaction. There are two types of carbenes, singlet and triplet. They are so called due to their spin state. An optically active alkene (I) with lowest molecular mass on hydrogenation gives optically inactive alkene, but on insertion of methylene carbene ( : CH_2) in (I) , it gives optically active compound (II) . The compounds (I) and (II) are : .

    An organic compound E (C_5 H_8) on hydrogenation gives compound F (C_5 H_(12) ) . Compound E on ozonolysis gives formaldehyde and 2-ketopropanal. Deduce the structure of compound E.

    An alkance (A) C_(5)H_(12) on chlorination at 300^(@)C gives a mixtrue of four different monochlorinated derivatives (B), (C ), (D) , and (E ) . Two of these derivatives give the same stable alkene (F) on dehydrohalogenation. On oxidation with hot alkaline KMnO_(4) followed by acidification, (F) gives two products (G) and (H) . Give the structrues of (A) t o (H) with proper reasoning.

    When H_(2) is added to two isomeric alkenes A and B having molecular formula C_(5)H_(9)Cl , A gives optically inactive compound while B gives a chiral compound. The two isomers are

    Home
    Profile