Polythene is a/an ______________ polymerisation product?
A. Addition
B. Condensation
C. Thermosetting
D. None of these
Month: February 2019
The ideal pulp for the manufacture of paper should have high ____________________ content?
The ideal pulp for the manufacture of paper should have high ____________________ content?
A. Cellulose
B. Lignin
C. Both A. & B.
D. None of these
Chemical name of ‘alum’ is__________________?
Chemical name of ‘alum’ is__________________?
A. Barium sulphate
B. Aluminium sulphate
C. Aluminium chloride
D. Calcium sulphate
Sodium carbonate (soda ash) is not used in the manufacture of___________________?
Sodium carbonate (soda ash) is not used in the manufacture of___________________?
A. Fire extinguishers
B. Sugar
C. Baking powder
D. Detergents
حضور ؐ کا پانچویں آسمان پر اسم مبارک کیا ہے _______ ؟
حضور ؐ کا پانچویں آسمان پر اسم مبارک کیا ہے _______ ؟
مزکی .❶
محب .❷
مجیب .❸
مقرب .❹
A ‘unit process’ is exemplified by the___________________?
A ‘unit process’ is exemplified by the___________________?
A. Distillation
B. Hydrogenation of oils
C. Absorption
D. Humidification
The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by_________________?
The metallic aluminium is obtained from pure alumina in the presence of fused cryolite by_________________?
A. Electrolysis
B. Electrolytic reduction
C. Electrolytic oxidation
D. None of these
Alum is commercially produced from___________________?
Alum is commercially produced from___________________?
A. Gypsum
B. Feldspar
C. Galena
D. Bauxite
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the__________________?
In nylon-66, the first and second numbers (i.e., 6) respectively designate the number of carbon atoms present in the__________________?
A. Diamine and the ring
B. Dibasic acid and the ring
C. Diamine and the dibasic acid
D. None of these
Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at __________________?
Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at __________________?
A. 1 atm & 100°C
B. 5 atm & 275°C
C. 100 atm & 500°C
D. 50 atm & 1000°C