Related Questions

Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale.
A Nickel
B Vanadium
C Alumina
D Iron
Molten phthalic anhydride is stored in a/an __________ vessel.
A Aluminium
B Nickel clad steel
C Lead lined steel
D Glass lined steel
__________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol).
A Unsaturated polyester
B Alkyd resins
C Saturated polyester
D Amino resins
Phthalic anhydride is made by the
A Oxidation of naphthalene
B Oxidation of benzene
C Dehydrogenation of ethyl benzene
D None of these
Phthalic anhydride is used
A In making PVC
B As plasticisers
C In insecticides manufacture
D For making nylon-6
Phthalic anhydride is produced by the oxidation of
A Naphthalene
B Benzene
C Toluene
D Aniline
Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used
A For surface coating of automobiles & air crafts
B For fibre making
C As plasticiser for PVC & nitrocellulose
D For film forming materials
Catalyst used in the oxidation of benzene to produce maleic anhydride is
A V2O5
B Pt
C Ni
D Cr
Starting raw material for the manufacture of maleic anhydride is
A N-butene
B Benzene
C Either A or B
D Neither A nor B
Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is
A Ni
B V2O5
C Fe
D Aluminium triethyl combined with titanium tetrachloride

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