Related Questions

Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium bicarbonate
A Is prone to thermal decomposition
B Has high water solubility and is unstable
C Is soluble in ammonium chloride and potassium chloride solution
D All of the above
Which of the following polymers belong to the class of formaldehyde resin?
A Melamine resins
B Teflon
C Dacron
D None of these
Phenol formaldehyde
A Employs addition polymerisation
B Employs condensation polymerisation
C Is a monomer
D Is an abrasive material
Phenol formaldehyde resin is used as an adhesive in making
A Laminates
B Card boxes
C Furniture
D Books
Phenol formaldehyde is produced by condensation polymerisation. It is also known as
A Teflon
B Bakelite
C Polyester
D Nylon-66
Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin.
A Resorcinol
B Phenol
C Para-cresol
D Melamine
Bakelite (phenol-formaldehyde) resin can not be used as
A Decorative paint
B Decorative laminates
C Electrical insulation
D Glass reinforced plastics
__________ resins are produced by the condensation polymerisation of formaldehyde with urea or melamine.
A Epoxy
B Amino
C Alkyd
D Phenolic
Melamine formaldehyde resin which has a very high anti tacking properties, is not used for the
A Electrical insulation purpose
B Tanning of leather
C Strengthening of plaster of paris
D Decorative laminates
What is the common name of the solution of calcium hydroxide?
A Lime water
B Diet soda
C Salt solution
D Vinegar

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