Home
Current Affairs January 2024

What is the correct answer?

4

The main product of high temperature carbonisation of coal is

A. Coke

B. Ammonia

C. Tar

D. Phenol

Correct Answer :

A. Coke


Related Questions

What is the correct answer?

4

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

A. 20 - 30

B. < - 5

C. 100 - 150

D. 250 - 300

What is the correct answer?

4

__________ process is used for producing soda ash.

A. Chamber

B. Chance

C. Tromp

D. Solvay

What is the correct answer?

4

Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have

A. High electrical insulation properties

B. Sharp melting points

C. Low co-efficient of thermal expansion

D. Compressive strength much greater than their tensile strengths

What is the correct answer?

4

Grignard reagent is chemically known as

A. Ethyl magnesium chloride

B. Methyl magnesium chloride

C. Dichlorophenol

D. Monochloroacetic acid

What is the correct answer?

4

Pick out the wrong statement.

A. Strongly caking coal should not be used in the Lurgi gasifier

B. Acetylene gas cannot be used for illumination purpose

C. Water gas is called blue gas because of the color of the flame, when it is burnt

D. Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels

What is the correct answer?

4

Consider the production of ammonia from methene and air as raw materials. The catalysts used are:
(i) __________ for steam reforming of methane and
(ii) __________ for ammonia synthesis.

A. (i) - Ni/Al2O3; (ii) - Cu - ZnO/Al2O3

B. (i) - Fe/Al2O3; (ii) - Cu - ZnO/Al2O3

C. (i) - Ni/Al2O3; (ii) - Fe/Al2O3

D. (i) - Fe/Al2O3; (ii) - Ni/Al2O3

What is the correct answer?

4

Pick out the wrong statement.

A. Azoic dyes are mostly applied on cotton fabrics

B. Basic dyes (e.g. amino derivatives) are applied mostly to paper

C. Mordant dyes are applied mainly to wools

D. None of these

What is the correct answer?

4

CaCl(OCl) is the chemical formula of

A. Hypo

B. Bleaching powder

C. Plaster of Paris

D. Aqua regia

What is the correct answer?

4

Which of the following fuel gases contains maximum amount of carbon monoxide?

A. Coke oven gas

B. Water gas

C. Blast furnace gas

D. L.D. converter gas

What is the correct answer?

4

Common salt is generally not produced commonly by __________ method from brine.

A. Freeze drying

B. Electrolytic

C. Solar evaporation

D. Vacuum evaporation

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

Carboxymethyl cellulose (CMC) is added in detergents to

A. Prevent redeposition of soil on cleaned surface

B. Act as optical brightening agent

C. Inhibit corrosion in washing machines made of aluminium

D. None of these

What is the correct answer?

4

Which of the following coals has the highest calorific value?

A. Lignite

B. Sub-bituminous

C. Anthracite

D. Peat

What is the correct answer?

4

Coke oven gas consists mainly of

A. H2, & CH4

B. CO, & CO2

C. H2, & CO

D. CH4, & CO

What is the correct answer?

4

Analgesic drugs are

A. Pain relievers

B. Antibiotics

C. Used in the treatment of T.B.

D. Used in the treatment of typhoid

What is the correct answer?

4

Fish contains about __________ percent oil.

A. 5

B. 10

C. 20

D. 35

What is the correct answer?

4

Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.

A. -83

B. -183

C. -196

D. -218

What is the correct answer?

4

Oleum produces fumes of

A. SO2

B. H2SO4

C. SO3

D. SO2 + H2SO4

What is the correct answer?

4

Washing soda is chemically represented by

A. Na2CO3

B. Na2CO3.H2O

C. Na2CO3.10H2O

D. NaHCO3

What is the correct answer?

4

The major use of butadiene is

A. As a plasticiser for unsaturated polyester

B. In the manufacture of synthetic rubber

C. As an anti-skinning agent in paint

D. None of these

What is the correct answer?

4

At a given temperature, the equilibrium yield of SO3 obtained from the oxidation of SO2 is proportional to (where, P = pressure of the system).

A. P

B. √P

C. P2

D. 1/P

What is the correct answer?

4

Nylon-6 is a

A. Polyamide

B. Thermosetting resin

C. Polyester

D. None of these

What is the correct answer?

4

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

A. Eucalyptus wood

B. Bamboo

C. Bagasse

D. Fine teak wood

What is the correct answer?

4

Type of glass used in optical work is the __________ glass.

A. Soda-lime

B. Fibre

C. Lead

D. Borosilicate

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

__________ are added in lacquers to remove film brittleness and to improve adhereness.

A. Film forming materials

B. Plasticisers

C. Diluents

D. Solvents

What is the correct answer?

4

Which of the following is not a product of coal tar distillation?

A. Anthracene

B. Creosote oil

C. Carbolic oil

D. None of these

What is the correct answer?

4

Main constituents of natural rubber is

A. Polystyrene

B. Polyisoprene

C. Polybutadiene

D. Polychlorophrene

What is the correct answer?

4

__________ iron is the purest form of iron.

A. Cast

B. Wrought

C. Pig

D. High silicon

What is the correct answer?

4

Neoprene is a

A. Monomer

B. Synthetic rubber

C. Polyester

D. None of these