A. Sulphur
B. Charcoal
C. Potassium nitrate
D. All A , B, & C.
Related Mcqs:
- Gun powder, which is an explosive comprises of charcoal, sulphur and____________________?
A. Glycerine
B. Salt petre
C. Nitro glycerine
D. Dynamite - _________________ is not a constituent of gun powder?
A. Carbon
B. Charcoal
C. Sulphur
D. Potassium nitrate - Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on ____________________?
A. Slaked lime
B. Soda lime
C. Calcium perchlorate
D. None of these - Bleaching action of bleaching powder is due to its _____________ properties ?
A. Reducing
B. Oxidising
C. Disinfecting
D. None of these - Blue colour is imparted to glass by the addition of__________________?
A. FeSO4
B. PbO
C. CaO
D. NaOH - Nicotine is___________________?
A. A volatile alkaloid
B. Obtained by treating by-products of the tobacco processing industry
C. Both A. and B.
D. Neither A. nor B. - Shrinkage volume in cement setting does not depend upon the _____________________?
A. Sand to cement ratio
B. Water to cement ratio
C. Ambient temperature fluctuation
D. Drying period - Naphthalene is removed from coke oven gas by ________________________?
A. Adsorbing on palladium
B. Absorbing in ethanolamine
C. Scrubbing with wash oil
D. Passing it through electrostatic precipitator - Main product in calcium carbide-water reaction is___________________?
A. Ca(OH)2
B. C2H2
C. CO2
D. CaCO3 - The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is _________________?
A. Dilute H2SO4
B. Oleum
C. Ultraviolet light
D. None of these
