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4

Alcohol content in freshly prepared natural and fortified wine may be respectively around __________ percent.

A. 7-14 and 14-30

B. 7-14 and 40-50

C. 14 - 30 and 40-50

D. 10 - 20 and 40 - 50

Correct Answer :

A. 7-14 and 14-30


Related Questions

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Coke oven gas consists mainly of

A. H2, & CH4

B. CO, & CO2

C. H2, & CO

D. CH4, & CO

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Ethanol amine is produced using ammonia and

A. Ethyl benzene

B. Ethylene oxide

C. Ethanol

D. Ethane

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Thermal pyrolysis of ethylene dichloride produces

A. Trichloroethylene

B. Vinyl chloride

C. Ethanol amine

D. Ethylene oxide

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Which of the following is used as a binding material in soap to improve soap texture?

A. Rosin

B. Borax

C. Benzyl acetate

D. Sodium carbonate

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A unit operation is exemplified by the process of

A. Reduction

B. Desorption

C. Nitration

D. Combustion

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Which of the following is the purest form of water out of the following?

A. Underground water

B. Rain water

C. Well water

D. Lake water

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Catalyst used in the hydrogenation of oil is

A. Nickel

B. Platinum

C. Iron

D. Alumina

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Systemic insecticides

A. Are absorbed throughout the plant

B. Kill insects following external bodily contact

C. Are stomach poisons

D. Emit poisonous vapour

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All enzymes are made of

A. Fats

B. Carbohydrates

C. Proteins

D. Amino acids

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In multistage equilibrium conversion of SO2 to SO3 (2SO2 + O2 2SO3), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO2 to SO3 can be increased by

A. Increasing the oxygen concentration

B. Putting more quantity of V2O5 catalyst in the converter

C. Removing some quantity of SO3 during intermediate stage

D. Maintaining low temperature & pressure in the converter

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4

The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to

A. Avoid mechanical weakening of fibre

B. Remove lignin by way of crystallisation

C. Increase the cellulose content

D. None of these

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Na2CO3.10H2O is called

A. Washing soda

B. Soda ash

C. Slaked lime

D. Quicklime

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Bordeaux mixture is a/an

A. Fertiliser

B. Inorganic fungicide

C. Insecticide

D. Explosive

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Which of the following is not an insecticide?

A. Hydrocyanic acid

B. Nicotine

C. Sodium fluoride

D. Hexane

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Multistage catalytic converter is not used in the

A. Conversion of SO2 to SO3

B. NH3 synthesis reaction

C. Both (A) and (B)

D. Neither (A) nor (B)

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Low temperature carbonisation of coal takes place at __________ °C.

A. 300

B. 1100

C. 700

D. 900

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Catalytic oxidation of toluene produces

A. Styrene

B. Phenol

C. Benzene

D. Tri-nitro-toluene

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Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda?

A. Diaphragm electrolytic cell process

B. Mercury electrolytic cell process

C. Lime-soda process

D. None of these

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Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid.

A. Phthalic anhydride

B. Vinyl chloride

C. Maleic anhydride

D. Dacron

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Cellulose percentage in bamboo fibre is about

A. 10

B. 20

C. 50

D. 85

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Viscose rayon is

A. Cellulose nitrate

B. Regenerated cellulose nitrate

C. Regenerated cellulose acetate

D. None of these

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Nylon-6 is manufactured from

A. Caprolactam

B. Hexamethylene diamine and adipic acid

C. Hexamethylene diamine and Maleic anhydride

D. Hexamethylene diamine and Sebacic acid

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Rancidity of the fatty oil can be reduced by its

A. Decoloration

B. Hydrogenation

C. Oxidation

D. Purification

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Sodium carbonate (soda ash) is not used in the manufacture of

A. Fire extinguishers

B. Sugar

C. Baking powder

D. Detergents

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The end bleaching agent used to move last traces of colour bodies from the pulp is

A. Chlorine dioxide (ClO2)

B. MgO

C. SO2 gas

D. Mercaptans

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Shaving soaps are

A. Soft potassium soaps (potassium salt of fatty acid) with free Stearic acid to give lather a lasting property

B. Metallic soaps compounded with frothing agents

C. High free alkali soaps having excess of cane sugar and alcohol

D. None of these

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4

White phosphorous is stored under water, because

A. It does not react with water

B. It is poisonous

C. Its kindling temperature in dry air is very low

D. It is unstable

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Essential oils are usually obtained using

A. Steam distillation

B. Extractive distillation

C. Solvent extraction

D. Leaching

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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

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Lubricating greases are a mixture of

A. Mineral oil, soap and additives

B. Mineral oil and metallic soap

C. Mineral oil and fatty oil

D. Fatty oil and metallic soap