Home
Class 12
CHEMISTRY
Hydrogenation of alkenes yields...

Hydrogenation of alkenes yields

A

Alkanes

B

Alkynes

C

Aldehydes

D

Carboxylic acids

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Hydrogenation**: Hydrogenation is a chemical reaction that involves the addition of hydrogen (H₂) to an alkene. This process is significant in organic chemistry and industrial applications. 2. **Role of Catalysts**: The hydrogenation of alkenes requires the presence of a metal catalyst. Common catalysts used for this reaction include: - Nickel (Ni) - Palladium (Pd) - Platinum (Pt) - Ruthenium (Rh) 3. **Reaction Conditions**: The hydrogenation reaction typically occurs at elevated temperatures, around 150 degrees Celsius, to facilitate the reaction between hydrogen and the alkene. 4. **Example of Hydrogenation**: A common example of hydrogenation is the reaction of ethene (C₂H₄) with hydrogen (H₂) to produce ethane (C₂H₆). - Reaction: C₂H₄ + H₂ → C₂H₆ 5. **Product Formation**: The product of the hydrogenation of an alkene is an alkane. Therefore, when ethene undergoes hydrogenation, it yields ethane. 6. **Conclusion**: In general, the hydrogenation of alkenes yields alkanes. ### Final Answer: Hydrogenation of alkenes yields alkanes. ---
Promotional Banner

Topper's Solved these Questions

  • HYDROGEN

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - B) (objective type question)|38 Videos

  • HYDROGEN

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - C) (Previous type questions)|27 Videos

  • HYDROGEN

    AAKASH INSTITUTE|Exercise EXERCISE|10 Videos

  • HYDROCARBONS

    AAKASH INSTITUTE|Exercise Assignment(Section - D) (Assertion -Reason Type Question)|24 Videos

  • M0ck test 26

    AAKASH INSTITUTE|Exercise EXAMPLE|40 Videos

Similar Questions

Explore conceptually related problems

The molecular formula of Wilkinson's catalyst used in the hydrogenation of alkenes is

Hydrogenation of alkenes and alkynes takes place in presence of certain catalysts. In Sabatier Senderen's reaction, the addition of hydrogen takes place I presence of Raney nickel catalyst. Platininm and palladium can also be used as catalyst and used in finley divided state. Experimentally, it is observed that less crowded alkenes adsorb H_(2) with faster rate. Controlled hydrogenation of alkyne H_(2) with faster rate. Controlled hydrogenation of alkyne in presence of Lindlar's catalyst yields cis product i.e., 'cis' alkene. Thus, in presence of Lindlar's catalyst 'syn' addition takes place. The relative rate of hydrogenation follows the order: Non-terminal alkynes are reduced in presence of Na or Li metal dissolved in liquid ammonia. In this reaction, anti-addition of hydrogen results into the trans-product. Answer the following questions: The relative rate of catalytic hydrogenation of following alkenes is:

Which of the following acts as a catalyst in the hydrogenation of alkenes?

Wilkinson's catalyst, unsed as a catalyst in the hydrogenation of alkene is__________and is an example of ______catalysis .