Chemical name of aspirin (an analgesic drug) is
Acetylsalicylic acid
Nictonic acid
Calcium acetate
Methyl salicylate
Correct Answer :
A. Acetylsalicylic acid
Related Questions
Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?
AgO
Al2O3
ZnCl2
Fe2O3
Synthetic glycerine is produced from
Toluene
Phenol
Propylene
Naphthalene
Essential oils are usually obtained using
Steam distillation
Extractive distillation
Solvent extraction
Leaching
Anion exchanger is regenerated usually with
NaOH
H2SO4
Hydrazine
Alum solution
Cellulose percentage in bamboo fibre is about
10
20
50
85
Which of the following paper does not require a filler during manufacture?
Bond paper
Writing paper
Blotting paper
Coloured paper
__________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.
Pyrex
Soda lime
Lead
High silica
Pick out the wrong statement pertaining to the soap manufacture.
Transparent soaps are made by cold process
Organic pigments are used as colouring materials in the soap manufacture
Both laundry as well as toilet soaps are manufactured by hot process
Colourless rosin is used in the manufacture of laundry soaps
Glycerine is not used in the
Manufacture of explosive
Conditioning and humidification of tobacco
Manufacture of pharmaceuticals
None of these
Hydrogenation of oil/fat does not
Improve its resistance to rancid oxidation
Raise its melting point
Remove double bonds
None of these
White phosphorous is stored under water, because
It does not react with water
It is poisonous
Its kindling temperature in dry air is very low
It is unstable
Pick out the wrong statement.
Fibrillation of fibre during paper manufacture is done to develop the strength in paper
Alkali consumption in digestion/cooking of bamboo is measured in terms of permanganate number
Bagasse fibre contains both lignin & cellulose
Presence of sodium sulphate in pulp makes the pulp bleachability poor
Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about __________ °C.
-53
-103
-183
-196
Which of the following fuel gases contains maximum amount of carbon monoxide?
Coke oven gas
Water gas
Blast furnace gas
L.D. converter gas
A unit operation is exemplified by the process of
Reduction
Desorption
Nitration
Combustion
Hydrogenation of oil takes place in a/an __________ reactor.
Autothermal
Trickle bed
Plug flow
None of these
Fermentation of molasses to produce ethyl alcohol is done at __________ °C.
20 - 30
< - 5
100 - 150
250 - 300
Gun powder, which is an explosive comprises of charcoal, sulphur and
Glycerine
Salt petre
Nitro glycerine
Dynamite
Paper grade bamboo contains about __________ percent cellulose.
5
20
40
60
The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to
Avoid mechanical weakening of fibre
Remove lignin by way of crystallisation
Increase the cellulose content
None of these
Teflon is
Phenol formaldehyde
An inorganic polymer
Poly tetra-fluoro-ethylene (P.T.F.E.)
A monomer
Plasticisers are added to synthetic plastics to
Impart flexibility
Improve workability during fabrication
Develop new improved properties not present in the original resins
All (A), (B) and (C)
The product obtained on mixing calcium oxide with water is called
Quicklime
Slaked lime
Milk of lime
None of these
Reaction of calcium carbide with water produces a gas, which is used
As an illuminant
For metal cutting/welding
Both (A) & (B)
Neither (A) nor (B)
Pick out the wrong statement.
Eosin requirement in tallow soap is about 40-50% which fastens the lather formation, softens the hard soaps and increases its cleansing action
Soap powder is prepared by mixing soap with hydrated sodium carbonate
Detergents differ from soaps in their action in hard water
Tarnish inhibitor (e.g., Benzotriazole) is added in soap to facilitate the removal of stains due to tea, blood etc
Rancidity of the fatty oil can be reduced by its
Decoloration
Hydrogenation
Oxidation
Purification
Which of the following sugars is the sweetest?
Glucose
Fructose
Sucrose
Lactose
Blue vitriol is chemically
Copper sulphate
Ferrous sulphate
Copper nitrate
Aluminium sulphate
Which of the following impurities in feed water for high pressure boiler is the most detrimental?
Silica
Dissolved oxygen
Suspended salt
Dissolved salt
SO2 is bubbled through hot sugar cane juice to
Act as an acidifying agent
Increase its concentration
Increase the amount of molasses
Increase the crystal size