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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, Chemical Process /
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.

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

CHEMICAL ENGINEERING, Chemical Process

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an

CHEMICAL ENGINEERING, Chemical Process /
Question: Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an
[A].

explosive

[B].

soap

[C].

detergent

[D].

analgesic drug

Answer: Option C

Explanation:

No answer description available for this question.

Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulphonic acid produces sodium dodecylbenzene sulphate, which is a/an Read More »

CHEMICAL ENGINEERING, Chemical Process

“Whatever Dev uttered was without rhyme or reason” means ……

Completing Statements, Verbal Ability /
Question: “Whatever Dev uttered was without rhyme or reason” means ……
[A].

Dev could not recite any poem or speech

[B].

Dev said something which has no meaning, it was totally baseless

[C].

Dev was talking something which was beyond our experience

[D].

Dev spoke flatly without any emotion or reason

Answer: Option B

Explanation:

No answer description available for this question.

“Whatever Dev uttered was without rhyme or reason” means …… Read More »

Completing Statements, Verbal Ability

Ore concentration by froth floatation utilises the __________ of ore particles.

CHEMICAL ENGINEERING, Chemical Process /
Question: Ore concentration by froth floatation utilises the __________ of ore particles.
[A].

density difference

[B].

wetting characteristics

[C].

terminal velocities

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.

Ore concentration by froth floatation utilises the __________ of ore particles. Read More »

CHEMICAL ENGINEERING, Chemical Process