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Chemistry

Chemistry
The heat energy produced when the human body metabolises 1 gram of fat is

39 KJ
1 KJ
30 KJ
29 KJ

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Chemistry
The molecular mass of a gas is

Twice its vapour pressure
Half its vapour pressure
Not related to its vapour pressure
Equal to its vapour pressure

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Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.25 mole
0.5 mole
0.4 mole
0.2 mole

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Chemistry
Which of the following is used for refrigeration?

Freon
Chlorine
Phosphine
Sulphur dioxide

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Chemistry
Nylon threads are made of

Polyester polymer
Polyamide polymer
Polyvinyl polymer
Polysaccharide

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Chemistry
Sour milk contains

Citric acid
Tartaric acid
Acetic acid
Lactic acid

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