Reaction of an alcohol with organic acid is called the __________ reaction.
Saponification
Esterification
Neutralisation
Acidification
Correct Answer :
B. Esterification
Related Questions
Nitrogen is an essential component of
Mineral salts
Carbohydrates
Fats
Proteins
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the
Diamine and the ring
Dibasic acid and the ring
Diamine and the dibasic acid
None of these
__________ is a thermosetting plastic.
Polyvinyl chloride
Polythene
Bakelite
Teflon
Ca(OH)2 is called
Quicklime
Slaked lime
Limestone
Gypsum
Widely used method for the conditioning of boiler feed water is the
Cold lime process
Coagulation
Hot-lime soda process
Sequestration
90% of the caprolactam is converted to nylon-6 on its condensation polymerisation in the reactor maintained at __________ °C.
< 0
10-30
250-280
500-600
Wood charcoal is used for decolouration of sugar, because it __________ the coloured materials.
Adsorbs
Oxidises
Reduces
Converts
Cation exchanger is regenerated usually with
NaOH
H2SO4
Hydrazine
Alum solution
Most commonly used rubber vulcanising agent is
Sulphur
Bromine
Platinum
Alumina
Which of the following is an endothermic reaction?
Absorption of SO3 in 98% H2SO4
C + H2O = CO + H2
Thermal dissociation of iron pyrites
Both (B) and (C)
Prussian blue is chemically represented by
FeO.TiO2
Ca SO4 . 2H2O
Fe4 [Fe (CN6)3]
AlF3 . 3NaF
Builders are added in soap to act as
Cleaning power booster
Anti-redeposition agent
Corrosion inhibitor
Fabric brightener
The process involved in converting rubber into a thin sheet or coating it on fabric is called
Extrusion
Mastication
Calendaring
Vulcanisation
Low purity oxygen is used for
L.D. steel making
Cutting and welding of metals
Medicinal purposes
Chemical oxidation processes
Use of hydrated lime in water treatment
Before filtration, reduces the bacterial load on filters
After filtration, combats the corrosiveness of water due to the presence of O2 & CO2
Is to adjust the pH value
All (A), (B) and (C)
Nylon-6 is a
Polyamide
Thermosetting resin
Polyester
None of these
The purpose of adding Na2CO3 to water of low alkalinity is to
Permit the use of alum as a coagulant
Increase the softening capacity of zeolite
Facilitate easy regeneration of zeolite
All (A), (B) and (C)
The only commercial Fischer-Tropsch plant for producing liquid hydrocarbon fuel from coal is located at
SASOL (in South Africa)
Redcar (U.K.)
Los Angeles (U.S.A.)
Trombay (India)
__________ is the major constituent of the Portland cement.
Calcium carbonate
Calcium oxide
Tricalcium silicate
Calcium sulphate
__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.
Solvay
Ostwald's
Haber's
None of these
In contact process, SO3 is absorbed in 97% H2SO4 and not in water, because
SO3 gas is sparingly soluble in water
Water forms an acid mist, which is difficult to absorb
The purity of acid is affected
Scale formation in the absorber is to be avoided
Epoxy resin
Is a good adhesive
Is an elastomer
Cannot be used for surface coatings
Is a polyester
__________ iron is the purest form of iron.
Cast
Wrought
Pig
High silicon
High magnesia lime is added to hot sugar cane juice (during the manufacture of sugar) to
Flocculate the impurities
Facilitate fast filtration
Both (A) and (B)
Neither (A) nor (B)
__________ is a polysaccharide.
Maltose
Starch
Sucrose
Glucose
Which of the following is a disaccharide?
Sucrose
Glucose
Starch
Maltose
Oxygen is separated by distillation from air after its liquefaction. The boiling point of oxygen is about __________ °C.
-83
-183
-196
-218
Nickel is not used as a catalyst in the
Fischer-Tropsch process
Shift conversion
Hydrogenation of oil
Ostwald's process of HNO3 manufacture
__________ is used as a flux in the smelting of copper ore like chalcopyrite.
Coke breeze
Lime powder
Silica/quartz
Dolomite
Lime and soda ash are added to water to remove
Bicarbonates & sulphates of calcium and magnesium
Undesirable taste and odour
Bacteria
Its corrosiveness