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Chemistry

Chemistry
Which of the following is not present in RNA

Thymine
Uracil
Ribose
Phosphate

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Chemistry
J.J. Thomson’s proposed model of atom is generally called ________ model.

Plum and cake
Cream and pudding
Plum and pudding
Cream and cake

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Chemistry
Vulcanization of rubber is carried out by adding

Carbon
Phosphorus
Ozone
Sulphur

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Chemistry
The manufacturing of iron from iron ore involves the process of

Electrolysis
Reduction
Fractional distillation
Oxidation

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Chemistry
Brass is a solution of molten copper in

Molten tin
Solid zinc
Molten zinc
Gaseous zinc

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Chemistry
Sodium is produced by the electrolysis of

Aqueous brine solution
Its cyanide complex
Molten sodium chloride
Molten sodium carbonate

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