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Chemistry

Chemistry
Which of the following is a natural polymer?

Starch
Bakelite
Polythene
Nylon

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Chemistry
Which one of the following does not form oxyacid ?

Sulphur
Fluorine
Nitrogen
Chlorine

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Chemistry
Natural rubber is a polymer of

Isoprene
Vinyl acetate
Propene
Styrene

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Chemistry
Nitrogen forms a variety of compounds in all oxidation states ranging from

–3 to + 5
–3 to + 3
–3 to + 6
–3 to + 4

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Chemistry
Two elements which can form a large number of compounds are

Carbon and Nitrogen
Carbon and Oxygen
Carbon and Sulphur
Carbon and Hydrogen

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Chemistry
The buffer action of blood is due to the presence of

[HCO3]– and H2CO3
CI– and [HCO3]–
CI– and [CO3]2–
HCI and NaCI

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