Pick the odd one out.
Potassium
Oxygen
Nitrogen
Phosphorous
A substance which has less elasticity is
Thiocol
Neopreen rubber
Ebonite
Styrene butadyne rubber.
Which one of the following is a thermoset plastic?
Nylon
Polycarbonate
PVC (poly vinyl chloride)
Acetate (or cellulose)
Which substance contains phenol?
Poly vinyl Chloride
Bakelite
Polyethylene
Pick out the odd one.
Elite
Gypsum
SO3
Aluminate
Antacids are used to reduce
pain
acidity
body temperature
Vomiting
The non-stick coating on frying pans is that of a plastic called
poly vinyl chloride
melamine
Teflon
Which of the following plastics is used for making electric switches ?
Melamine
PET
To get purple coloured glass what metallic compound is used?
Uranium oxide
Cupric oxide
Nickel salt
Manganese dioxide