__________ process is used for the commercial production of nitric acid by the catalytic oxidation of ammonia.
Solvay
Ostwald's
Haber's
None of these
Correct Answer :
B. Ostwald's
Related Questions
Na2CO3 is called
Washing soda
Soda ash
Plaster of Paris
Calcite
Ultimate analysis of coal determines its __________ content.
Carbon, hydrogen, nitrogen & sulphur
Carbon, ash, sulphur & nitrogen
Carbon, sulphur, volatile matter & ash
Carbon, volatile matter, ash & moisture
Glycerine is recovered from lye by
Evaporation followed by vacuum distillation
Liquid extraction technique
Extractive distillation technique
None of these
The main use of HCl is in the
Drilling of petroleum wells and pickling of steel sheets
Manufacture of cationic detergent
Treatment of spent fuel of nuclear reactor
None of these
__________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace.
Bauxite
Limestone
Quartz
Manganese
Essential oils are usually obtained using
Steam distillation
Extractive distillation
Solvent extraction
Leaching
Saponification value/number of an oil or fat is a measure of its
Fatty acid content
Degree of unsaturation of the fatty acids present in it
Average molecular weight
Insoluble fatty acid content
Grignard reagent is chemically known as
Ethyl magnesium chloride
Methyl magnesium chloride
Dichlorophenol
Monochloroacetic acid
The combustion reaction, C + O2 = CO2, is
Exothermic
Endothermic
Autocatalytic
None of these
Main constituent of dolomite is
CaCO3
MgCO3
K2CO3
Na2CO3
Antibiotic
Inhibits/destroys the growth of microorganisms
Is used as a pain reliever
Is an antimalarial
Is an anaesthetic
Massecuite is
Used for paper making
Used as a cattle feed
Highly acidic in nature
None of these
Argon is the third largest constituent of air (followed by N2 & O2). Its percentage by volume in air is
0.14
0.34
0.94
1.4
Vanillin is a type of
Anti-pyretic drug
Food preservative
Flavour
Dye
Hydrogenation of vegetable oils is a/an __________ reaction.
Endothermic
Autocatalytic
Exothermic
Homogenous
Coagulant is used __________ filtration.
Before
After
During
To avoid
Resistance to fusion of the refractory under a steady rising temperature condition is called
Spalling
Refractoriness
Both (A) & (B)
Neither (A) nor (B)
A unit operation is exemplified by the process of
Reduction
Desorption
Nitration
Combustion
Sand and __________ is fused at 1300°C, to produce sodium silicate.
Limestone
Soda ash
Coke
Sodium sulphate
Commercially ethylene is produced from naphtha by
Catalytic cracking
Catalytic dehydrogenation
Pyrolysis
Hydrocracking
Which of the following is an unsaturated fatty acid?
Lauric acid
Palmitic acid
Stearic acid
Oleic acid
The manufacture of Kraft pulp is done by a/an __________ process.
Alkaline
Acidic
Neutral
None of these
Main constituents of cotton fiber is
Lignin
Cellulose
Starch
Gelatine
99.5% purity oxygen is used in
Cutting and welding by oxy-acetylene flame
Hospitals for medicinal purposes
Gas masks and artificial breathing apparatus
All (A), (B), and (C)
Pick out the true statement pertaining to water treatment.
Slow sand filters can remove colour completely
Activated carbon can be used for taste & odour control without subsequent filtration
Application of activated carbon reduces the temporary hardness of water
Normally, the turbidity is removed by adding a coagulant prior to sedimentation
Glycerine is a by-product of the __________ industry.
Soap
Detergent
Oil hydrogenation
Paint
Which of the following processes does not produce Cl2 as a co-product during the manufacture of caustic soda?
Diaphragm electrolytic cell process
Mercury electrolytic cell process
Lime-soda process
None of these
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)
Nitric acid is not used in the manufacture of
Detergents
Fertilisers
Aqua regia
Explosives
Nylon-6 as compared to Nylon-66 is having higher
Hardness
Abrasion/resistance
Melting point
None of these