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Chemical Process

Chemical Process
Bromine content in sea water may be around __________ ppm.

1875
2500
70
640

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Chemical Process
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the

None of these
Diamine and the dibasic acid
Diamine and the ring
Dibasic acid and the ring

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Chemical Process
Lindane is

Both B and C
BHC (Benzene Hexa Chloride) containing 99% γ-isomer
Not a fumigant
A by-product of BHC manufacture

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Chemical Process
Thermosetting plastic materials

Can not be melted after forming
Is useful for melt casting
Can be repeatedly melted
Is useful for spinning

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Chemical Process
Synthetic glycerine is produced from

Naphthalene
Toluene
Propylene
Phenol

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Chemical Process
Carborundum consists mainly of

Calcium carbide
Bauxite
Silicon carbide
Boron carbide

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