The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is _________________?

Related Mcqs:

One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to_________________?

A. Adjust the pH of the syrup B. Remove the coloring matter from the syrup C. Reduce the viscosity of the syrup D. Improve the rate of crystallisation of sugar...

Molecular weight of plastics ranges from ______________________?

A. 5000 to 10000 B. 20000 to 250000 C. 500 to 5000 D. 106 to 109...

The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to___________________?

A. Avoid mechanical weakening of fibre B. Remove lignin by way of crystallisation C. Increase the cellulose content D. None of these...

Process conditions in fermentator used for production of penicillin is____________________?

A. 25°C, 2 atm B. 50°C, l0 atm C. 30°C, 200 mm Hg (absolute) D. 90°C, 45 atm...

Polymethyl methacrylate (PMMA) is known as ____________________?

A. Bakelite B. Teflon C. Perspex D. Nylon-6...