Related Questions

Low density polythene as compared to high density polythene is
A Harder
B Tougher
C Chemically inert
D More flexible
Polythene is industrially prepared by the polymerization of-
A Methane
B Styrene
C Acetylene
D Ethylene
This long sentence "Since it is made of chemicals any food is wrapped up in it particularly in the black polythene bag for a long time, the food item becomes contaminated” refers to
A Contaminated food items are with chemicals
B Food items are contaminated
C The food item becomes contaminated as it is made of chemicals
D Food items are full of chemicals
Catalyst used in the production of high density polythene by low pressure Ziegler process is
A Aluminium triethyl activated with TiCl4
B Platinum
C Molybdenum
D Nickel
__________ polythene is most prone to stress-cracking
A High density
B Low density
C Cross-linked
D Linear low density
Polythene is polymer of
A Ethylene
B Propylene
C Acetylene
D Aniline
The polymerisation of which often following is used in manufacturing of polythene in industry ?
A Methane
B Styrene
C Acetylene
D Ethylene
Which state proposed a ban on all types of polythene packing for the first time in India?
A Himachal Pradesh
B Madhya Pradesh
C Kerala
D Karnataka
Polythene is a/an __________ polymerisation product.
A Addition
B Condensation
C Thermosetting
D None of these
Polythene (low or high density) containers are not corroded by
A Sulphuric acid (10%) at room temperature
B Nitric acid (95%) at room temperature
C Sulphur trioxide at 60°C
D Any of these

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