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Chemistry

Chemistry
Aluminium can be purified by

Electrolysis
Ozonolysis
Distillation
Oxidation

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Chemistry
Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emission?

European Union, China, USA, India
China, India, European Union, USA
USA, India, China, European Union
China, USA, European Union, India

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Chemistry
The material which can be deformed permanently by heat and pressure is called a

thermoset
polymer
thermoplastic
chemical compound

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Chemistry
What is the atomic number of mercury

63
41
80
32

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Chemistry
Match the List-I with List-II and select the correct answer using the codes given belowList-I (Vitamin)List-II(Chemical compound)F.Vitamin A1.ThiaminG.Vitamin B12.RetinolH.Vitamin C3.Ascorbic acidJ.Vitamin E4.TocopherolCodes :FGHJA.4132B.2314C.4312D.2134

A
D
C
B

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Chemistry
Ozone consists of

Oxygen only
Hydrogen and Carbon
Oxygen and Nitrogen
Oxygen and Carbon

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