Chemical Process

______________ is an ore concentrating metallurgical process involving a chemical change?

Byadmin February 13, 2019August 22, 2021

______________ is an ore concentrating metallurgical process involving a chemical change?

A. Electromagnetic separation
B. Froth floatation
C. Roasting
D. None of these

Chemical Process

Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda ?

Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda ?

A. High cost of mercury
B. High specific gravity of mercury
C. Non-availability of high purity mercury
D. Pollution of water stream by mercury

Read More Which of the following is the most adverse factor challenging the choice of mercury electrolytic cell process for the production of caustic soda ?
Chemical Process

Starting raw material for the manufacture of alum is_________________?

Starting raw material for the manufacture of alum is_________________?

A. Alumina
B. Gypsum
C. Bauxite
D. Ammonium bicarbonate

Read More Starting raw material for the manufacture of alum is_________________?
CHEMICAL ENGINEERING | Chemical Process

Ca(OH)2 is called

Question: Ca(OH)2 is called
[A].

quicklime
[B].
slaked lime
[C].
limestone
[D].
gypsum

Answer: Option B

Explanation:

No answer description available for this question.

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Chemical Process

Poly Tetrafluoroethylene (P.T.F.E.) is known as___________________?

Poly Tetrafluoroethylene (P.T.F.E.) is known as___________________?

A. Bakelite
B. Teflon
C. Celluloid
D. Dacron

Read More Poly Tetrafluoroethylene (P.T.F.E.) is known as___________________?
Chemical Process

The process involved in converting rubber into a thin sheet or coating it on fabric is called ___________________?

The process involved in converting rubber into a thin sheet or coating it on fabric is called ___________________?

A. Extrusion
B. Mastication
C. Calendaring
D. Vulcanisation

Read More The process involved in converting rubber into a thin sheet or coating it on fabric is called ___________________?
Chemical Process

Fats as compared to oils have ___________________?

Fats as compared to oils have ___________________?

A. More unsaturated glycerides of fatty acids
B. Less unsaturated glycerides of fatty acids
C. Much higher reactivity to oxygen
D. Lower melting point

Read More Fats as compared to oils have ___________________?

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