What Type of Compound Has Been Used to Replace Tetraethyl

question 121

Multiple Choice

What type of compound has been used to replace tetraethyl lead (( Pb) as an antiknock agent in gasoline?

• A)aromatic compounds
• B)olefins
• C)fluorochlorocarbons
• D)paraffins
• E)oxygenated hydrocarbons

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Definitions:

Utility Computing

A model where computing resources are provided as a metered service similar to a traditional public utility, like electricity.

Flat Rate

A pricing model in which a service is provided for a constant fee, irrespective of usage or duration.

Cloud Computing

The delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the internet ("the cloud") to offer faster innovation, flexible resources, and economies of scale.

Grid Computing

A computing paradigm that involves the integration of disparate resources across multiple administrative domains for a common goal.