The main source of Naphthalene is

A Charcoal
B Camphor
C Coal-tar
D Diesel

Correct Answer: Coal-tar

Most naphthalene is derived from coal tar. From the 1960s until the 1990s, significant amounts of naphthalene were also produced from heavy petroleum fractions during petroleum refining, but today petroleum-derived naphthalene represents only a minor component of naphthalene production.
Bissoy MCQ
#General Knowledge #Chemistry

Related Questions

The chief source of naphthalene is
A Coal-tar
B Diesel
C Charcoal
D Camphor
A mixture of sand and naphthalene can be separated by
A Fractional distillation
B Sublimation
C Chromatography
D Any of them
Naphthalene is removed from coke oven gas by
A Adsorbing on palladium
B Absorbing in ethanolamine
C Scrubbing with wash oil
D Passing it through electrostatic precipitator
Catalytic oxidation of naphthalene produces
A Styrene
B Phenol
C Phthalic anhydride
D None of these
Naphthalene is used for making
A Insecticides (e.g. moth balls)
B Unsaturated polyesters
C Drug intermediates e.g. β-naphthol
D All of the above
Naphthalene recovered from coke oven gas is used
A As moisture proof coating on fibres
B As moth balls (insecticides)
C As a fuel in furnaces
D For making electrodes
Cetane number of alpha methyl naphthalene is assumed to be
A 0
B 100
C 50
D ∞
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as ________ double cover butt joint.
A Single riveted
B Double riveted
C Multi riveted
D None of these
When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as _______ double cover butt joint.
A Single riveted
B Double riveted
C Both (A) and (B)
D None of these
If the energy is supplied from a source, whose resistance is 1 ohm, to a load of 100 ohms the source will be
A A voltage source
B A current source
C Both of above
D None of the above

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