Conversion of SO2 to SO3 in Monsanto 4-pass converter is about __________ percent.
80
90
98
100
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- __________ glass is used for the manufacture of optical glass.
- Which of the following is not produced commercially from sea water?
- Drinking (potable) water treatment does not involve
- Fusel oil is a/an
- Solvent extracted oil
- Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst…
- Deaeration of water in its treatment is necessary, as it
- Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm…
- Which of the following is an ore of iron?
- Riboflavin is a/an
- The chamber process is
- Extraction of __________ employs an electrolytic process.
- Glass is
- Chloral is used in the manufacture of
- Gun powder, which is an explosive comprises of charcoal, sulphur and
- __________ is the major constituent of the Portland cement.
- Cooking liquor in case of sulphite process is
- Viscose rayon is chemically
- Which of the following impurities in feed water for high pressure boiler is the most detrimental?
- Hydrogenation of oil/fat does not
- Alcohol is produced by the
- Polycaprolactam is commercially known as
- Catalytic oxidation of naphthalene produces
- Catalyst used during the manufacture of 'Vanaspati Ghee' is
- Parathion and Malathion are
- Nylon-6 is a
- __________ acid is an unsaturated fatty acid.
- Bakelite is chemically known as
- Glauber's salt is chemically
- The product obtained on mixing calcium oxide with water is called