Chemical Process - Chemical Engineering Questions and Answers

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Epoxy resin

is a good adhesive.

is an elastomer.

cannot be used for surface coatings.

is a polyester.

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Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent.

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

High cost of mercury.

High specific gravity of mercury.

Non-availability of high purity mercury.

Pollution of water stream by mercury.

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Esterification reaction produces

detergent

vanaspati

soap

mercaptans

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Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.

adsorbs

oxidises

reduces

converts

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Producer gas consists mainly of

CO, CO₂ N₂, H₂

CO, H₂

H₂, CH₄

C₂H₂, CO₂, H₂

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Neoprene is the trade name of

polyurathane

phenol formaldehyde

polychloroprene

styrene-butadiene rubber

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Hard water

does not affect the lather formation by soap.

is not unfit for drinking purpose.

pollutes the water stream.

all (a), (b) and (c).

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Which of the following is an organo-metal-lic compound ?

Isopropyl alcohol

Tetra-ethyl lead

Zeolite

Cumene