Phthalic anhydride is used____________________?

Related Mcqs:

Baking soda is chemically represented by__________________?

A. Na2CO3 B. NaHCO3 C. Na2CO3.H2O D. Na2CO3.10H2O...

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...

Linde process of gas liquefaction employs__________________?

A. Exchange of heat with colder stream B. Adiabatic expansion through a throttle valve (Joule-Thomson expansion) C. Adiabatic expansion against a piston or in a turbine D. Merely compressing the gas beyond its critical pressure...

Iron ore hematite is concentrated using ____________________?

A. Electromagnetic separation mainly B. Gravity separation C. Froth floatation D. Roasting...

Pick out the wrong statement?

A. Azoic dyes are mostly applied on cotton fabrics B. Basic dyes (e.g. amino derivatives) are applied mostly to paper C. Mordant dyes are applied mainly to wools D. None of these...