phenol and formaldehyde are polymerised to a
Phenol and Formaldehyde are polymerised to a resultant product known as
(A) PVC. (B) bakelite.
(C) Polyester. (D) teflon.
Ans:
Phenol and Formaldehyde are polymerised to a resultant product termed as bakelite.
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gold and silver area dielectric materialsb low resistivity conducting materialsc magnetic materialsd insulating materialsansgold and silver are low
among the following for which one mathematical expression gamma hp stands1 de broglie equation2 einstein equation3 uncertainty equation4 bohr
n-type semiconductor is an example ofa extrinsic semiconductor b intrinsic semiconductorc super
which one of the following explains light both as a stream of particles and as wave motion1 diffraction2 gamma hp3 interference 4
phenol and formaldehyde are polymerised to a resultant product known asa pvc
dielectric materials area insulating materials b semiconducting materialsc magnetic
in which one of the following pairs of experimental observations and phenomenon does the experimental observation correctly account for phenomenon1
thermocouples are used for the measurement ofa
large scale integration chips have betweena less than 10 components b 10 and 100 componentsc 100 and 1000
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