CHEMICAL ENGINEERING | Chemical Reaction Engineering

Enzymes are destroyed, when the

Byadmin August 11, 2022

Question: Enzymes are destroyed, when the
[A].

temperature is very high,

[B].

reactant’s concentration is very high.

[C].

reactant’s concentration is very low.

[D].

reaction rate is independent of the reactant’s concentration.

Answer: Option A

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Chemical Engineering Basics

Lowering of recrystallisation temperature of metals can be achieved by its

Question: Lowering of recrystallisation temperature of metals can be achieved by its
[A].

grain refinement.
[B].
purification.
[C].
working at lower temperature.
[D].
all a, b & c.

Answer: Option D

Explanation:

No answer description available for this question.

Read More Lowering of recrystallisation temperature of metals can be achieved by its
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

A change in state involving a decrease in entropy can be spontaneous, only if

Question: A change in state involving a decrease in entropy can be spontaneous, only if
[A].

it is exothermic.
[B].
it is isenthalpic.
[C].
it takes place isothermally.
[D].
it takes place at constant volume.

Answer: Option A

Explanation:

No answer description available for this question.

Read More A change in state involving a decrease in entropy can be spontaneous, only if
CHEMICAL ENGINEERING | 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.

Question: Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.
[A].

15-30
[B].
90-100
[C].
250-300
[D].
<0

Answer: Option A

Explanation:

No answer description available for this question.

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

The joint for soldering is supported by binding wire made of ____________________?

The joint for soldering is supported by binding wire made of ____________________?

A. Mild steel
B. Copper
C. Soft iron
D. Stainless steel

Read More The joint for soldering is supported by binding wire made of ____________________?
CHEMICAL ENGINEERING | Chemical Process

Paper grade bamboo contains about __________ percent cellulose.

Question: Paper grade bamboo contains about __________ percent cellulose.
[A].

5
[B].
20
[C].
40
[D].
60

Answer: Option A

Explanation:

No answer description available for this question.

Read More Paper grade bamboo contains about __________ percent cellulose.
CHEMICAL ENGINEERING | Fuels and Combustion

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3 ), while the C.V. is same on weight basis (i.e., kcal/kg) ?

Question: For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3 ), while the C.V. is same on weight basis (i.e., kcal/kg) ?
[A].

Propane and acetylene
[B].
Propane and LPG
[C].
Sewage gas and gobar gas
[D].
B.F. gas and coke oven gas

Answer: Option A

Explanation:

No answer description available for this question.

Read More For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3 ), while the C.V. is same on weight basis (i.e., kcal/kg) ?

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