6457Chemical EngineeringMedium
Zeigler – Natta catalyst (AlR3 – AlCl3) is used in the polymerisation of________?
APropylene
BVinyl chloride
CVinyl acetate
DStyrene
Correct answer
A. Propylene
Explanation
The correct answer is Propylene.
Correct answer
A. Propylene
Explanation
The correct answer is Propylene.
High speed steel tools retain their hardness upto a temperature of ________ °C?
Ingress of cold air in the furnaces through cracks, charging doors, openings etc ________?
Liquefaction of gases cannot be done by________?
Which of the following is not produced commercially from sea water?
The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about ________ percent?
Pick out the wrong statement?