Which of the following is used as an anti -knocking compound?
A
TEL
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B
C2H5OH
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C
Glyoxal
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D
Freon
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Solution
The correct option is A TEL An anti-knocking agent is the substance which is used to reduce the engine knocking. It increases the octane number of the fuel. It helps in auto-ignition by raising the temperature and pressure. TEL is tetraethyl Lead which is used as an Anti-Knocking compound.