Home
Current Affairs January 2024

What is the correct answer?

4

Electro deposition of metals i.e. electroplating is never done on

A. Metals

B. Alloys

C. Refractories

D. Non-metals

Correct Answer :

C. Refractories


Related Questions

What is the correct answer?

4

Wax is a

A. Mixture of glycerides

B. Mixture of esters of polyhydric alcohols excepting glycerine

C. Liquid at room temperature

D. Mixture of glycerides of fatty acids

What is the correct answer?

4

__________ process is used for the manufacture of sodium carbonate by ammonia soda process.

A. Ostwald's

B. Bosch

C. Solvay

D. Haber's

What is the correct answer?

4

Helium is produced on commercial scale from

A. Air

B. Natural gas

C. Coke oven gas

D. None of these

What is the correct answer?

4

Direct conversion of chemical energy into electrical energy is done in a

A. Magnetohydrodynamic (MHD) generator

B. Fuel cell

C. Fast breeder reactor

D. None of these

What is the correct answer?

4

Starting material for the commercial production of ethyl alcohol in India is

A. Rice

B. Molasses

C. Fruit of Mahua tree

D. Maize

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

Favourable conditions for the liquefaction of gases in general are

A. High pressure & low temperature

B. Low pressure & high temperature

C. High pressure & high temperature

D. Low pressure & low temperature

What is the correct answer?

4

Main constituent of dolomite is

A. CaCO3

B. MgCO3

C. K2CO3

D. Na2CO3

What is the correct answer?

4

Liquor poisoning generally occurs due to the presence of __________ in it.

A. Ethyl alcohol

B. Impurities

C. Methyl alcohol

D. Carbonic acid

What is the correct answer?

4

Laboratory glass wares which reacts with hydrofluoric acid, are made of the __________ glass.

A. Lead

B. Borosilicate

C. Soda lime

D. Alkali silicate

What is the correct answer?

4

Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.

A. 80

B. 90

C. 98

D. 100

What is the correct answer?

4

Polymerisation product of C2F4 (carbon tetrafluoride) is called P.T.F.E (poly chloro tetra fluoro ethylene). It is also called

A. Polyurethane

B. Silicone

C. Teflon

D. Epoxy resin

What is the correct answer?

4

Zeigler process

A. Produces high density polyethylene

B. Produces low density polyethylene

C. Uses no catalyst

D. Employs very high pressure

What is the correct answer?

4

Glycerine is a by-product of the __________ industry.

A. Soap

B. Detergent

C. Oil hydrogenation

D. Paint

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

__________ is an ore of lead.

A. Quartz

B. Galena

C. Siderite

D. Chalcopyrite

What is the correct answer?

4

Ethyl alcohol cannot be produced

A. From waste sulphite substrate of paper mills

B. By Esterification and hydrolysis of ethylene

C. From molasses

D. None of these

What is the correct answer?

4

Which glass is usually used in optical work?

A. Lead glass

B. High silica (borosilicate) glass

C. Photo-sensitive glass

D. Fibre glass

What is the correct answer?

4

The main product of high temperature carbonisation of coal is

A. Coke

B. Ammonia

C. Tar

D. Phenol

What is the correct answer?

4

Phthalic anhydride is produced by the oxidation of

A. Naphthalene

B. Benzene

C. Toluene

D. Aniline

What is the correct answer?

4

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

What is the correct answer?

4

The main component of Pyrex glass is

A. Zinc

B. Lead

C. Boron

D. Selenium

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

Nylon-6 as compared to Nylon-66 is having higher

A. Hardness

B. Abrasion/resistance

C. Melting point

D. None of these

What is the correct answer?

4

An oil is converted into fat by its

A. Hydrogenation

B. Hydrolysis

C. Hydrocracking

D. Hydration

What is the correct answer?

4

Calcination of gypsum produces

A. Plaster of Paris

B. Salt cake

C. Nitre cake

D. Lime

What is the correct answer?

4

Chrome tanning and vegetable tanning are done for

A. Light & heavy leather respectively

B. Heavy & light leather respectively

C. Both light & heavy leather

D. Neither light nor heavy leather

What is the correct answer?

4

Neoprene is chemically known as

A. Polybutadiene

B. Styrene butadiene rubber (SBR)

C. Polyurethane

D. Polychlorophrene

What is the correct answer?

4

Which is a high grade pulp?

A. Rag pulp

B. Mechanical pulp

C. Sulphate pulp

D. Sulphite pulp

What is the correct answer?

4

Ca(OH)2 is called

A. Quicklime

B. Slaked lime

C. Limestone

D. Gypsum