Chemical Process

________________ is the major constituent of the Portland cement?

Byadmin February 14, 2019August 22, 2021

________________ is the major constituent of the Portland cement?

A. Calcium carbonate
B. Calcium oxide
C. Tricalcium silicate
D. Calcium sulphate

Chemical Process

In the manufacture of viscose rayon, the raw material used industrially is ____________________?

In the manufacture of viscose rayon, the raw material used industrially is ____________________?

A. Eucalyptus wood
B. Bamboo
C. Bagasse
D. Fine teak wood

Read More In the manufacture of viscose rayon, the raw material used industrially is ____________________?
Chemical Process

Phthalic anhydride is made by the ______________________?

Phthalic anhydride is made by the ______________________?

A. Oxidation of naphthalene
B. Oxidation of benzene
C. Dehydrogenation of ethyl benzene
D. None of these

Read More Phthalic anhydride is made by the ______________________?
Chemical Process

Hydrogenation of oil/fat does not_________________?

Hydrogenation of oil/fat does not_________________?

A. Improve its resistance to rancid oxidation
B. Raise its melting point
C. Remove double bonds
D. None of these

Read More Hydrogenation of oil/fat does not_________________?
CHEMICAL ENGINEERING | Chemical Process

Fermentation of molasses to produce ethyl alcohol is done at __________ °C

Question: Fermentation of molasses to produce ethyl alcohol is done at __________ °C
[A].

20 – 30
[B].
< – 5
[C].
100 – 150
[D].
250 – 300

Answer: Option A

Explanation:

No answer description available for this question.

Read More Fermentation of molasses to produce ethyl alcohol is done at __________ °C
Chemical Process

Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about _____________ percent?

Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about _____________ percent?

A. 75
B. < 10
C. > 30
D. 50

Read More Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about _____________ percent?
Chemical Process

RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically____________________?

RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically____________________?

A. Cyclo trimethylene trinitramine
B. Trinitro resorcinol
C. Cyclo tetramethylene tetranitramine
D. Trinitrobenzene

Read More RDX (an explosive), which is more sensitive but less toxic than TNT, is chemically____________________?

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