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Current Affairs January 2024

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Phenolic antiseptics are added in the __________ soap.

A. Shaving

B. Medicated

C. Metallic

D. Transparent

Correct Answer :

B. Medicated


Related Questions

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Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.

A. CaO

B. MnO2

C. ZnO

D. FeS

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For the hydrogenation of oils, __________ (i) __________ is commonly used as catalyst and __________ (ii) __________ is a catalyst poison.

A. (i) platinum (ii) sulphur

B. (i) palladium (ii) oxygen

C. (i) nickel (ii) sulphur

D. (i) nickel (ii) oxygen

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4

Bromine is used in the preparation of

A. Fire extinguishing compounds

B. Fire proofing agents

C. Dyes and antiknock compounds

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

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4

Phthalic anhydride is made by the

A. Oxidation of naphthalene

B. Oxidation of benzene

C. Dehydrogenation of ethyl benzene

D. None of these

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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

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4

Which of the following is a bleaching agent added in the detergents to facilitate removal of stains caused due to blood, tea etc?

A. Sodium silicate

B. Sodium borate

C. Sodium tripolyphosphate (STPP)

D. Caustic soda

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Esterification reaction produces

A. Detergent

B. Vanaspati

C. Soap

D. Mercaptans

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__________ is obtained as a by-product in the manufacture of sodium hydroxide using brine.

A. Chlorine

B. Ammonium chloride

C. Sodium carbonate

D. Sodium bi-carbonate

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Presence of sodium tripolyphosphate (an additive) in synthetic detergent

A. Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)

B. Inhibits its corrosive effects

C. Does not allow redeposition of dirt on the cleaned surface

D. None of these

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In the Solvay process, the product from the calciner is

A. Light soda ash

B. Dense soda ash

C. Sodium bicarbonate

D. Dehydrated soda ash

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4

Fish contains about __________ percent oil.

A. 5

B. 10

C. 20

D. 35

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Thermosetting plastic materials

A. Can be repeatedly melted

B. Is useful for melt casting

C. Cannot be melted after forming

D. Is useful for spinning

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Hydrophilic group of a soap or detergent solution is

A. Water hating

B. Soil loving

C. Water loving

D. None of these

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Tall oil obtained as a by-product from the black liquor recovery is

A. A black, sticky & viscous liquid

B. Used in the manufacture of greases, emulsions & soaps

C. Composed mainly of rosin & fatty acids

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

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Pure rectified spirit contains about __________ percent alcohol.

A. 45

B. 70

C. 95

D. 99.5

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Bisphenol A is produced by the condensation of acetone with

A. Formaldehyde

B. Ethyl alcohol

C. Diethyl ether

D. Phenol

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Polycaprolactam is commercially known as

A. Nylon-6

B. Nylon-66

C. Dacron

D. Rayon

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Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of

A. Nitric acid

B. Sulphuric acid

C. Ammonium sulphate

D. Hydrochloric acid

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Paper pulp produced by Kraft/sulphate process is

A. Bleached easily

B. Dull white in color

C. Strong fibrous

D. Dark colored

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Chemical formula of 'salt cake' is

A. Na2SO4

B. CaSO4

C. MgSO4

D. BaSO4

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Viscose rayon

A. Cannot be made from sulphite pulp

B. Utilises H2SO4, NaOH and CS2 during its manufacture

C. Cannot yield textile grade fibre

D. None of these

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Penicillin is made employing __________ fermentation process.

A. Continuous

B. Aerobic batch

C. Anaerobic batch

D. None of these

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Isopropyl benzene produced by alkylation of benzene with propylene is known as

A. Neoprene

B. Cumene

C. Gelatin

D. Mercaptans

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What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell?

A. Cl2 & Na

B. Cl2 & H2

C. O2 & H2

D. Cl2, H2 & NaOH solution

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Concentration of sulphide ores is done usually by

A. Roasting

B. Smelting

C. Froth floatation

D. Electromagnetic separation

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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

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Nitrogen is an essential component of

A. Mineral salts

B. Carbohydrates

C. Fats

D. Proteins

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Stereospecific agents are exemplified by

A. Radiation

B. Supported metal oxide catalysts

C. Ziegler catalysts

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

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Removal of dirt/soil by soaps or detergent does not involve the __________ of soil.

A. Emulsification

B. Dispersion

C. Precipitation

D. Wetting

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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