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Chemistry

Chemistry
L.P.G. is mostly liquefied

Hydrogen
Oxygen
Butane
Methane

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Chemistry
Which one of the following is not present in cement ?

Alum
Clay
Gypsum
Alumina

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Chemistry
Which one is the simplest aromatic hydrocarbon

Picric acid
Benzene
Aspirin
Chloride

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Chemistry
Two electrons in an orbital are differentiated by which of the following ?

Magnetic quantum number
Spin quantum number
Principal quantum number
Azimuthal quantum number

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Chemistry
Which one of the following minerals is found in pure form?

Copper
Bauxite
Iron
Manganese

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Chemistry
When ice cubes are made, the entropy of water

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

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