Basics of Organic Chemistry - 7 | Octane number and Gasoline Additive | Class 11 NEB

Recent questions

• What is the purpose of a catalyst in pyrolysis reactions?

  The catalyst enables low-temperature catalytic cracking in pyrolysis reactions by facilitating the breakdown of larger molecules into smaller ones at lower temperatures, increasing efficiency and reducing energy consumption.

• How is iso-octane percentage indicated in a fuel mixture?

  The iso-octane percentage in a fuel mixture is indicated by a foreign number, which represents the proportion of iso-octane present in the mixture, influencing its octane rating and performance characteristics.

• What does the percentage of cetane indicate in a fuel mixture?

  The percentage of cetane in a mixture with alpha methyl naphthalene indicates the cetane number, which reflects the ignition quality of diesel fuel and its anti-knocking properties, crucial for efficient combustion in diesel engines.

• How does alpha methyl naphthalene affect fuel properties?

  Alpha methyl naphthalene, when mixed with cetane, influences the cetane number of the fuel mixture, enhancing its anti-knocking properties and improving combustion efficiency in diesel engines.

• Why are foreign numbers used to represent fuel properties?

  Foreign numbers are used to represent fuel properties such as iso-octane percentage and cetane number to provide standardized indicators that help in comparing and evaluating the performance characteristics of different fuel mixtures, aiding in fuel quality assessment and optimization.