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Chemistry

Chemistry
Philosopher’s wool is chemically

Magnesium oxide
Zinc oxide
Aluminium oxide
Calcium oxide

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Chemistry
The depletion of ozone layer is due to

Carbon dioxide
Sulphur dioxide
Chloro fluoro carbon
Ethane

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Chemistry
The octane number of zero is assigned to

2-methyl octane
n-heptane
iso-octane
3-methyl octane

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Chemistry
Which one is the simplest aromatic hydrocarbon

Benzene
Picric acid
Aspirin
Chloride

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Chemistry
Emulsifier is an agent which

Accelerates the dispersion
Homogenizes the emulsion
Aids the flocculation of emulsion
Stabilizes an emulsion

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Chemistry
An alloy used in making heating elements for electric heating device is

Nichrome
Solder
Alloy Steel
German Silver

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