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Chemical Process

Chemical Process
A bio-catalyst produced by living cells which acts independent of the cell is called a/an

Substrate
Enzyme
Nutrient
None of these

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Chemical Process
Resistance to fusion of the refractory under a steady rising temperature condition is called

Spalling
Refractoriness
Both A & B
Neither A nor B

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Chemical Process
Chemical formula of BHC, which is an insecticide is

C₆H₄Cl₂
C₆Cl₆
C₆H₅Cl
C₆H₆Cl₆

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Chemical Process
Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

15-30
250-300
90-100

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Chemical Process
Washing of coal is done to

Remove the adhering impurities
Reduce the ash content
Remove the inherent impurities
Both B and C

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Chemical Process
Blue colour is imparted to glass by the addition of

CaO
NaOH
FeSO₄
PbO

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MORE MCQ ON Chemical Process

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