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Chemistry

Chemistry
The resources which can be used continuously, year-after -year are called

Biotic
Abiotic
Non-renewable
Renewable

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Chemistry
Neoprene is a polymer of

Chloroprene
Isoprene
Isobutane
Isopentane

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Chemistry
If the equilibrium constants for the systems H2 + I2 ? 2HI and 2HI ? H2 + I2 are K1 and K2 respectively, the relationship between K1 and K2 is :

K1 = K2/2
K1 = 2K2
K1 = K2
K 1 = 1 /K2

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Chemistry
Sodium is produced by the electrolysis of

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

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Chemistry
24 carat of diamond is equal to

95% mg
91% gold
200 g
200 mg

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Chemistry
A metal is exposed to the atmosphere for sometime. It becomes coated with green carbonate. The metal must be

Aluminium
Silver
Copper
Zinc

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