Without suction pump filtration is __________________?
Without suction pump filtration is __________________? A. Fast processB. Slow process C. Rapid process D. All are possible
Without suction pump filtration is __________________? A. Fast processB. Slow process C. Rapid process D. All are possible
Direct conversion of solids into vapours is called ___________________? A. Solvent extractionB. sublimation C. crystallization D. vaporization
In CCI4 I2 shows________________? A. Red colourB. Purple colour C. Blue colour D. Yellow colour
Crystallization does not involve_______________? A. heatingB. sublimation C. cooling D. vaporization
Animal charcoal adsorbs the coloured_________________? A. impurities B. crystals C. solvents D. both A & B
Ratio of the amount of solute in organic and aqueous solvent is________________? A. Retardation factorB. Distribution co-efficient C. Distribution in aqueous solution D. All statements are wrong
95% ethanol is called_________________? A. methylated spirit B. wood spiritC. rectified spirit D. absolute alcohol
Which of the following technique is simple and efficient to purify a substance____________________? A. Filtration B. Sublimation C. CrystallizationD. Solvent extraction
Separation of a solid from its hot saturated solution by cooling is called__________________? A. vapourization B. solvent extraction C. filtrationD. crystallization
Sintered crucible is made up of________________? A. PlasticB. glass C. porcetain D. fiber