Chemistry
Which one of the following is used as an anti-freeze for the automobile engines ?

Propyl alcohol
Methanol
Ethanol
Ethylene glycol

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Chemistry
Which of the process is known as nitrification?

Conversion of nitrite to nitric oxide
Reaction of Nitrogen Monoxide with oxygen to form nitric acid
Conversion of ammonia to nitrites
Reaction of nitrogen dioxide with water to form nitric acid

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