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Chemistry

Chemistry
Vinegar made by fermentation from cane sugar contains

Acetic acid
Lactic acid
Citric acid
Palmitic acid

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Chemistry
Liquid Nitrogen boils at

77 kelvin
54 kelvin
82 Kelvin
97 Kelvin

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Chemistry
Which one of the following is used for dating very old objects of archaeological importance?

Carbon-14
Tritium
Phosphorus-31
Radium

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Chemistry
Which one of the following is not a characteristic feature of alloys? They are

Compounds
Solutions
Mixtures
Homogeneous systems

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Chemistry
Photo-oxidation process is initiated by

Heat
Light
Catalyst
Oxygen

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Chemistry
Which of the following produces highest amount of energy upon oxidation?

Protein
Fat
An alkane
Glucose

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