Home
Current Affairs January 2024

What is the correct answer?

4

Stereospecific agents are exemplified by

A. Radiation

B. Supported metal oxide catalysts

C. Ziegler catalysts

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

Correct Answer :

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


Related Questions

What is the correct answer?

4

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

What is the correct answer?

4

__________ is the major constituent of the Portland cement.

A. Calcium carbonate

B. Calcium oxide

C. Tricalcium silicate

D. Calcium sulphate

What is the correct answer?

4

Sizing material is incorporated in paper to

A. Impart resistance to penetration by liquids

B. Increase its thickness

C. Increase its flexibility & opacity

D. Increase its brightness

What is the correct answer?

4

Chemical formula of BHC, which is an insecticide is

A. C6H6Cl6

B. C6Cl6

C. C6H5Cl

D. C6H4Cl2

What is the correct answer?

4

Main product in calcium carbide-water reaction is

A. Ca(OH)2

B. C2H2

C. CO2

D. CaCO3

What is the correct answer?

4

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

What is the correct answer?

4

Chalcopyrite is the main ore of

A. Copper

B. Lead

C. Tin

D. Iron

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

__________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.

A. Bauxite

B. Limestone

C. Quartz

D. Manganese

What is the correct answer?

4

Glass is

A. Mainly CaO

B. Subjected to galvanising

C. A super cooled liquid

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

What is the correct answer?

4

Naphthols are derivates of

A. Methyl amine

B. Naphthalene

C. Phenol

D. Xylene

What is the correct answer?

4

Bio-degradable detergents

A. Can be readily oxidised

B. Pose problem in sewerage plant

C. Have an isoparaffinic structure

D. Should not be used as it spoils the cloth

What is the correct answer?

4

The most stable allotropic form of phosphorous is the __________ phosphorous.

A. White

B. Black

C. Yellow

D. Red

What is the correct answer?

4

The manufacture of Kraft pulp is done by a/an __________ process.

A. Alkaline

B. Acidic

C. Neutral

D. None of these

What is the correct answer?

4

Sodium bisulphite is used for __________ water.

A. Deaeration

B. Dechlorination

C. Both (A) & (B)

D. Neither (A) nor (B)

What is the correct answer?

4

The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is

A. Dilute H2SO4

B. Oleum

C. Ultraviolet light

D. None of these

What is the correct answer?

4

Production of one ton of dry paper pulp requires about __________ tons of bamboo or wood.

A. 1

B. 2.5

C. 5

D. 10

What is the correct answer?

4

Acetone is produced by catalytic dehydrogenation of

A. Phenol

B. Naphthalene

C. Isopropanol

D. Ethyl benzene

What is the correct answer?

4

The process used for the manufacture of ethyl alcohol from molasses is

A. Distillation

B. Dehydration

C. Dehydrogenation

D. None of these

What is the correct answer?

4

Naphthalene is removed from coke oven gas by

A. Adsorbing on palladium

B. Absorbing in ethanolamine

C. Scrubbing with wash oil

D. Passing it through electrostatic precipitator

What is the correct answer?

4

In industrial nomenclature, alcohol means

A. Butyl alcohol

B. Propyl alcohol

C. Ethanol

D. Methyl alcohol

What is the correct answer?

4

Zeolite is a/an

A. Naturally occuring clay which is capable of exchanging cations

B. Abrasive material

C. Catalyst used in shift conversion

D. None of these

What is the correct answer?

4

Reaction of ethylene glycol and dimethyl terephthalate (DMT) produces

A. Nylon-6

B. Dacron

C. Polyester

D. PVC

What is the correct answer?

4

Fourdrinier machine is used in the manufacture of

A. Nylon-6

B. Paper

C. Antibiotics

D. Sugar

What is the correct answer?

4

The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.

A. Exothermic

B. Endothermic

C. Catalytic

D. Autocatalytic

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

Starting raw material for the manufacture of Maleic anhydride is

A. n-butene

B. Benzene

C. Either (A) or (B)

D. Neither (A) nor (B)

What is the correct answer?

4

Viscose rayon is chemically

A. Cellulose nitrate

B. Regenerated cellulose nitrate

C. Cellulose acetate

D. Regenerated cellulose acetate

What is the correct answer?

4

Phenol is mainly used

A. To produce benzene

B. To produce phenol formaldehyde

C. To produce polyester resin

D. As a plasticiser for unsaturated polyester

What is the correct answer?

4

Solvay process as compared to dual process
(i.e. modified Solvay process).

A. Can use low grade brine

B. Has less corrosion problems

C. Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl

D. Both (B) and (C)