Fluorescent dyes are added in detergents to

Question

Fluorescent dyes are added in detergents to

A. Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics

B. Attain distinctiveness from other brands

C. Act as tarnish inhibitor for metals like German silver

D. None of these

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A mixture of chlorine & sodium bromide acts as a/an

A. Insecticides

B. Analgesic drug

C. Fire retardant

D. Hydrogenation catalyst

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Mercury cells for caustic soda manufacture, compared to diaphragm cells

A. Require lower initial investment

B. Require more power

C. Produce lower concentration NaOH

D. None of these

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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

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Which of the following is an yellow pigment?

A. Titanium dioxide

B. Ferrous sulphate

C. Lead chromates

D. Zinc sulphides

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Which of the following is an ore of iron?

A. Galena

B. Chalcopyrite

C. Hematite

D. Bauxite

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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

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Bordeaux mixture is a/an

A. Fertiliser

B. Inorganic fungicide

C. Insecticide

D. Explosive

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Very fine suspended and colloidal impurities are removed from water by a process called

A. Sedimentation

B. Coagulation

C. Disinfection

D. Softening

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Riboflavin is a/an

A. Vitamin

B. Analgesic drug

C. Anaesthetics

D. Anti-malarial drug

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Ultimate analysis of coal determines its __________ content.

A. Carbon, hydrogen, nitrogen & sulphur

B. Carbon, ash, sulphur & nitrogen

C. Carbon, sulphur, volatile matter & ash

D. Carbon, volatile matter, ash & moisture

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Na₂CO₃.10H₂O is called

A. Washing soda

B. Soda ash

C. Slaked lime

D. Quicklime

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Polymethyl methacrylate (PMMA) is known as

A. Bakelite

B. Teflon

C. Perspex

D. Nylon-6

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Sea weeds are an important source of

A. Fluorine

B. Chlorine

C. Bromine

D. Iodine

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Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its

A. Poor oxidation stability and high gum forming tendency

B. Greater tendency of decomposition at elevated temperature

C. Hydrolysis tendency in presence of water

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

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Percentage of glycerine present in the spent lye obtained during soap manufacture is about

A. 0.5

B. 5

C. 20

D. 35

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Fusel oil is a/an

A. Essential oil

B. Extract from medicinal herbs

C. Mixture of higher molecular weight alcohols (a by-product obtained during production of alcohol from molasses).

D. None of these

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Which of the following is a constituent of coffee?

A. Caffeine

B. Nicotine

C. Calgon

D. Lignin

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99.5% purity oxygen is used in

A. Cutting and welding by oxy-acetylene flame

B. Hospitals for medicinal purposes

C. Gas masks and artificial breathing apparatus

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

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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

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Which of the following paper does not require a filler during manufacture?

A. Bond paper

B. Writing paper

C. Blotting paper

D. Coloured paper

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

A. Eucalyptus wood

B. Bamboo

C. Bagasse

D. Fine teak wood

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Styrene butadiene rubber (SBR) is

A. A natural rubber

B. A synthetic polymer

C. A synthetic monomer

D. Another name of silicone rubber

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Commonly used glass is known as the __________ glass.

A. Flint

B. Hard

C. Pyrex

D. Soda

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

A. Exothermic

B. Endothermic

C. Catalytic

D. Autocatalytic

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Sucrose content in cane sugar may be around __________ percent.

A. 50

B. 70

C. 95

D. 80

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Portland cement consists mainly of

A. CaO & SiO₂

B. SiO₂ & Al₂O₃

C. CaO & Al₂O₃

D. CaO & Fe₂O₃

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Phenol formaldehyde

A. Employs addition polymerisation

B. Employs condensation polymerisation

C. Is a monomer

D. Is an abrasive material

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Alcohol percentage in molasses may be around

A. 10

B. 40

C. 70

D. 85

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Main constituents of Portland cement are calcium aluminate and

A. Gypsum

B. Silicates

C. Sodium silicate

D. Carbonates

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Viscosity index improver (like polystyrene or polyisobutylene) is added to lubricant to

A. Reduce its viscosity

B. Increase its viscosity

C. Reduce the variation in its viscosity with temperature

D. Increase the variation in its viscosity with temperature

Discuss this answer

Accepted Answer

A. Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics

Fluorescent dyes are added in detergents to

Correct Answer :

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Related Questions

A mixture of chlorine & sodium bromide acts as a/an

Mercury cells for caustic soda manufacture, compared to diaphragm cells

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

Which of the following is an yellow pigment?

Which of the following is an ore of iron?

Chrome tanning and vegetable tanning are done for

Bordeaux mixture is a/an

Very fine suspended and colloidal impurities are removed from water by a process called

Riboflavin is a/an

Ultimate analysis of coal determines its __________ content.

Na₂CO₃.10H₂O is called

Polymethyl methacrylate (PMMA) is known as

Sea weeds are an important source of

Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its

Percentage of glycerine present in the spent lye obtained during soap manufacture is about

Fusel oil is a/an

Which of the following is a constituent of coffee?

99.5% purity oxygen is used in

Pasteurisation of milk means

Which of the following paper does not require a filler during manufacture?

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

Styrene butadiene rubber (SBR) is

Commonly used glass is known as the __________ glass.

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

Sucrose content in cane sugar may be around __________ percent.

Portland cement consists mainly of

Phenol formaldehyde

Alcohol percentage in molasses may be around

Main constituents of Portland cement are calcium aluminate and

Viscosity index improver (like polystyrene or polyisobutylene) is added to lubricant to

Also checkout

Fluorescent dyes are added in detergents to

Correct Answer :

Show all Chemical Process MCQ

Related Questions

A mixture of chlorine & sodium bromide acts as a/an

Mercury cells for caustic soda manufacture, compared to diaphragm cells

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

Which of the following is an yellow pigment?

Which of the following is an ore of iron?

Chrome tanning and vegetable tanning are done for

Bordeaux mixture is a/an

Very fine suspended and colloidal impurities are removed from water by a process called

Riboflavin is a/an

Ultimate analysis of coal determines its __________ content.

Na2CO3.10H2O is called

Polymethyl methacrylate (PMMA) is known as

Sea weeds are an important source of

Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its

Percentage of glycerine present in the spent lye obtained during soap manufacture is about

Fusel oil is a/an

Which of the following is a constituent of coffee?

99.5% purity oxygen is used in

Pasteurisation of milk means

Which of the following paper does not require a filler during manufacture?

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

Styrene butadiene rubber (SBR) is

Commonly used glass is known as the __________ glass.

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

Sucrose content in cane sugar may be around __________ percent.

Portland cement consists mainly of

Phenol formaldehyde

Alcohol percentage in molasses may be around

Main constituents of Portland cement are calcium aluminate and

Viscosity index improver (like polystyrene or polyisobutylene) is added to lubricant to

Also checkout

Na₂CO₃.10H₂O is called

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