Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of
Nitric acid
Hydrochloric acid
Methyl alcohol
Formic acid
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- Metallic soap is __________ salt of fatty acids.
- Very fine suspended and colloidal impurities are removed from water by a process called
- Reverse osmosis is normally used for the
- Fourdrinier machine is used in the manufacture of
- Graphite is a/an
- In the manufacture of viscose rayon, the raw material used industrially is
- __________ process is used for the manufacture of sodium carbonate by ammonia soda process.
- Neon gas is
- The gasification reaction represented by, C + H2O = CO + H2, is a/an __________ reaction.
- Extraction of __________ employs an electrolytic process.
- Coke used for the production of calcium carbide should have
- Paper grade bamboo contains about __________ percent cellulose.
- CaSO4 . ½H2O is known as
- Main constituents of Portland cement are calcium aluminate and
- Anion exchanger is regenerated usually with
- Blue colour is imparted to glass by the addition of
- Which of the following is not produced on commercial scale from sea water?
- Polymethyl methacrylate (PMMA) is known as
- Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on…
- Rosin soap is added during paper manufacture to
- Neoprene is a
- Exothermic neutralisation reaction between caustic soda and dodecylbenzene sulfonic acid produces sodium…
- Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of
- Solvent used for extraction of oil is
- Main product in calcium carbide-water reaction is
- Poly Vinyl Chloride (P.V.C.) is a __________ material.
- Which catalyst is used in the manufacture of ethylene oxide by oxidation of ethylene?
- Co-efficient of thermal expansion of glass is decreased by the addition of __________ during its manufacture.
- Esterification reaction produces
- Phthalic anhydride is used