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Chemical Process

Chemical Process
Neoprene is the trade name of

Phenol formaldehyde
Polychloroprene
Polyurathane
Styrene-butadiene rubber

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Chemical Process
Absorption of SO₃ in 97% H₂SO₄ is

Exothermic
None of these
Endothermic
Not possible

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Chemical Process
High temperature carbonisation of coal takes place at __________ °C.

2000
700
< 500
1100

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Chemical Process
__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

High silica
Soda lime
Lead
Pyrex

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Chemical Process
Percentage of uranium in carnotite ore found in Jadugoda (Jharkhand) is about

1 to 5
0.1 to 0.5
5 to 10
15 to 25

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Chemical Process
__________ process is used for the manufacture of sodium carbonate by ammonia soda process.

Haber's
Solvay
Ostwald's
Bosch

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