Home
Current Affairs January 2024

What is the correct answer?

4

Coke oven gas consists mainly of

A. H2, & CH4

B. CO, & CO2

C. H2, & CO

D. CH4, & CO

Correct Answer :

A. H2, & CH4


Related Questions

What is the correct answer?

4

Zeolite is used in the

A. Water treatment

B. Glass manufacture

C. Hydrogenation of fatty oil as a catalyst

D. Development of exposed photographic plate

What is the correct answer?

4

Liquefaction of gases cannot be done by

A. Exchange of heat with colder stream

B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion)

C. Merely compressing it beyond critical pressure

D. Adiabatic expansion against a piston or in a turbine

What is the correct answer?

4

Phthalic anhydride is used

A. In making PVC

B. As plasticisers

C. In insecticides manufacture

D. For making nylon-6

What is the correct answer?

4

Flash point of most vegetable oils is about __________ °C.

A. 50

B. 100

C. 200

D. 300

What is the correct answer?

4

Potassium is kept & transported under

A. Water

B. Liquid ammonia

C. Kerosene oil

D. Alcohol

What is the correct answer?

4

Finely ground calcium aluminate & silicate is a/an

A. Cermet

B. Cement

C. Abrasive

D. Explosive

What is the correct answer?

4

Proximate analysis of coal determines its __________ content.

A. Moisture, ash, sulphur & volatile matter

B. Moisture & volatile matter

C. Moisture, sulphur, nitrogen & fixed carbon

D. None of these

What is the correct answer?

4

Pick out the correct statement.

A. A fat is converted into oil by its hydrogenation

B. There is no difference between a fat and an oil so far as its physical properties are concerned

C. All vegetable oils except coconut oil, contains fatty acids having more than sixteen carbon atoms

D. Vegetable oils are classified as drying, non-drying and semi drying oils depending upon their fatty acids content

What is the correct answer?

4

Pick out the wrong statement.

A. Catalytic hydrogenation of carbon monoxide produces methyl alcohol

B. In nylon-6, the number 6 represents the total number of carbon atoms in the ring

C. Raw materials for DDT manufacture are benzene and chlorine

D. Ethanolamines are produced by using ammonia and ethylene oxide as raw material

What is the correct answer?

4

Adipic acid is an intermediate in the manufacture of

A. Perspex

B. Nylon-66

C. Polystyrene

D. Bakelite

What is the correct answer?

4

Sea water contains about __________ ppm of bromine.

A. 5

B. 70

C. 500

D. 1700

What is the correct answer?

4

Catalyst used in the oxidation of benzene to produce Maleic anhydride is

A. V2O5

B. Pt

C. Ni

D. Cr

What is the correct answer?

4

Haemoglobin is a/an

A. Amino acid

B. Biological catalyst

C. Protein

D. Enzyme

What is the correct answer?

4

Diaphragm electrolytic cell as compared to mercury electrolytic cell

A. Produces 70% NaOH solution

B. Requires less specific power consumption for the production of chlorine

C. Requires lesser investment for similar capacity

D. All (A), (B) and (C)

What is the correct answer?

4

A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

A. 1

B. 10

C. 25

D. 40

What is the correct answer?

4

Which allotrope of sulphur is insoluble in carbon disulphide?

A. Rhombic sulphur

B. Monoclinic sulphur

C. Plastic sulphur

D. Milk of sulphur

What is the correct answer?

4

Hydrogen gas is not produced commercially (for nitrogenous fertiliser manufacture) by

A. Iron-steam reaction

B. Electrolysis of water

C. Steam reforming of naphtha

D. Its cryogenic separation from coke oven gas

What is the correct answer?

4

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

A. 10

B. 25

C. 50

D. 98

What is the correct answer?

4

Function of sodium thiosulphate (hypo) in development of photographic film/plate is to

A. Brighten the faint images

B. Remove metallic silver

C. Convert silver chloride to silver

D. Remove unexposed silver halide

What is the correct answer?

4

Which of the following, when pyrolysed, produces Perchloroethylene?

A. Ethylene dichloride

B. Chlorobenzene

C. Carbon tetrachloride

D. Chlorinated paraffin

What is the correct answer?

4

Solvent used for extraction of oil is

A. Hexane

B. Methyl ethyl ketone

C. Furfural

D. None of these

What is the correct answer?

4

Industrial production of chloroform requires acetone and

A. Phosgene

B. Calcium hypochlorite

C. Chlorine

D. Ammonium chloride

What is the correct answer?

4

Inversion of sucrose produces

A. Fructose

B. Glucose

C. Both (A) & (B)

D. Neither (A) nor (B)

What is the correct answer?

4

Prussian blue is chemically represented by

A. FeO.TiO2

B. Ca SO4 . 2H2O

C. Fe4 [Fe (CN6)3]

D. AlF3 . 3NaF

What is the correct answer?

4

A bio-catalyst produced by living cells which acts independent of the cell is called a/an

A. Substrate

B. Enzyme

C. Nutrient

D. None of these

What is the correct answer?

4

Pasteurisation of milk means

A. Removal of fatty and albuminous substance from it

B. Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics

C. Inhibiting the growth of micro-organisms without killing them

D. None of these

What is the correct answer?

4

Raw material used in alcohol distilleries in India is

A. Molasses

B. Benzol

C. Methylated spirit

D. None of these

What is the correct answer?

4

Neoprene is a

A. Monomer

B. Synthetic rubber

C. Polyester

D. None of these

What is the correct answer?

4

90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.

A. < 0

B. 10-30

C. 250-280

D. 500-600

What is the correct answer?

4

Trinitro-toluene (TNT) is

A. Used in glycerine manufacture

B. An explosive

C. Used in dye manufacture

D. None of these