Fluted filter paper is used to__________________?
(A) Filter hot solution
(B) Avoid premature crystallization
(C) Increase the rate of filtration
(D) Decrease the area
Which of the following technique is used for the separation of insoluble particles from liquids ?
(A) Filtration
(B) Crystallization
(C) Solvent extraction
(D) Chromatography
Which of the following way in used for classification of chromatography ?
(A) Shape
(B) Phase
(C) Mechanism
(D) All
Neutrons moving with an energy of 1.2 MeV are called_______________?
(A) Fast neutrons
(B) Slow neutrons
(C) Moderate neutrons
(D) All are possible
When 6d orbital is complete the entering electron goes into_________________?
(A) 7f
(B) 7s
(C) 7p
(D) 7d
Centrifugal forces are balanced in atom by__________________?
(A) Attractive forces
(B) Repulsive force
(C) Electrons
(D) Neutrons
_______________ can expel proteons from paraffins ?
(A) Electron
(B) Positron
(C) Neutron
(D) None of above has such capability
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 factor
(B) Distribution co-efficient
(C) Distribution in aqueous solution
(D) All statements are wrong