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Chemistry

Chemistry
The metal compound commonly found in Sindhoor or Kumkum is based on

Zinc
Lead
Copper
Tin

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Chemistry
In drinking water supply, which of the following treatments is not involved

Coagulation
Disinfection
Sedimentation
Softening

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Chemistry
Two moles of an ideal gas expand freely into vacuum. The work done by the gas is

Infinity
4J
2J

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Chemistry
Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as

Additives
Antagonism
Independent
Synergism

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Chemistry
The example of oligosaccharide is

Sucrose
Ribose
Glucose
Cellulose

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Chemistry
What is the principal ore of aluminium ?

Bauxite
Copper
Lignite
Dolomite

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