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MCQ on principles of chromatography: Page-2

The silanization of stationary phase is done by treatment with
Divinyl benzene

(A) P

(B) Q

(C) R

(D) S

The technique used for analysis of small nonionic, polar molecules

(A) Adsorption

(B) Partition

(C) Ion-exchange

(D) Exclusion

The height equivalent to theoretical plate (HETP) is expressed by
Van deemter equation

(A) S

(B) R

(C) Q

(D) P

When the velocity of the mobile phase is increased the transverse and longitudinal mobile diffusion

(A) Decreases

(B) Increases

(C) Remains constant

(D) It depends on other factors

The process of changing the mobile phase composition either stepwise or continuously as elution proceeds is known as
Isocratic elution

(A) Q,R

(B) P,R

(C) P,S

(D) Q,S