Main constituents of Portland cement are calcium aluminate and__________________?

Related Mcqs:

Nitrile rubber is produced by the polymerisation of__________________?

A. Acrylonitrile and butadiene B. Acrylonitrile and styrene C. Isobutylene and isoprene D. None of these...

Sea water contains about ______________________ ppm of bromine ?

A. 5 B. 70 C. 500 D. 1700...

Thermosetting plastic materials____________________?

A. Can be repeatedly melted B. Is useful for melt casting C. Cannot be melted after forming D. Is useful for spinning...

Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at _____________ °C ?

A. 15-30 B. 90-100 C. 250-300 D. < 0...

Phthalic anhydride is used____________________?

A. In making PVC B. As plasticisers C. In insecticides manufacture D. For making nylon-6...