Gooch Crucibles are made up of________________?
A. plastic B. fibre C. porcelain D. steel
Chemistry MCQs
Sintered crucible is made up of________________?
A. Plastic B. glass C. porcetain D. fiber
Separation of a solid from its hot saturated solution by cooling is called__________________?
A. vapourization B. solvent extraction C. filtration D. crystallization
Which of the following technique is simple and efficient to purify a substance____________________?
A. Filtration B. Sublimation C. Crystallization D. Solvent extraction
95% ethanol is called_________________?
A. methylated spirit B. wood spirit C. rectified spirit D. absolute alcohol
Ratio of the amount of solute in organic and aqueous solvent is________________?
A. Retardation factor B. Distribution co-efficient C. Distribution in aqueous solution D. All statements are wrong
Animal charcoal adsorbs the coloured_________________?
A. impurities B. crystals C. solvents D. both A & B
Crystallization does not involve_______________?
A. heating B. sublimation C. cooling D. vaporization
In CCI4 I2 shows________________?
A. Red colour B. Purple colour C. Blue colour D. Yellow colour
Direct conversion of solids into vapours is called ___________________?
A. Solvent extraction B. sublimation C. crystallization D. vaporization