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Chemistry

Chemistry
The pollutant responsible for ozone holes is ________

CO
CFC
CO2
SO2

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Chemistry
When ice cubes are made, the entropy of water

Increases
Decreases
May either increase or decrease depending on the process used
Does not change

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Chemistry
Permanent – hardness of water may be removed by addition of

Sodium carbonate
Alum
Potassium Permangante
Lime

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Chemistry
For generation of biogas, the materials commonly used are

Forest residues
Animal wastes
Aquatic plants
Crop residues

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Chemistry
Which of the following substance's smell is similar to Ethanoic acid?

Lemon
Vinegar
Tomato juice
Kerosene

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Chemistry
Sour milk contains

Tartaric acid
Lactic acid
Citric acid
Acetic acid

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