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Chemistry

Chemistry
Which of the following is not present in RNA

Phosphate
Uracil
Ribose
Thymine

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Chemistry
Drinking soda is

Alkaline
Acidic
Oxidant
Neutral

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Chemistry
Air is said to be saturated when :

It contains maximum content of water vapour
Its thickness is maximum
Its pressure is minimum
It blows over the barren land

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Chemistry
Physico-chemical characteristics of water in water sources undergo changes due to

Auatic fungi
Aquatic macrophytes
Effluents
Evapotranspiration

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Chemistry
The compound used in pricklyheat powder to prevent excessive sweating is

Sulphuric acid
Carbonic acid
Boric acid
Phosphoric acid

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Chemistry
The name of plastic polymer from which combs, toys, bowls etc., can be made, is

Polystyrene
Polyurethane
Teflon
Metallic polysulphides

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