In paper chromatography the following cannot be used -
(a) Isocratic development
(b) Gradient development
(c) Two dimentional development
(d) Radial development
Question no.2
The ratio of distance traveled by solute to the reference substance is called -
(a) Rx value
(b) Rm value
(c) Rf value
(d) Rt value
Question no.3
The Van-Deempter equation is relationship between HETP and
(a) Eddy diffusion
(b) Logitudinal diffusion
(c) Non equilibrium in mass transfer terms
(d) All of the above
Question no.4
X-ray Diffraction is based on -
(a) Nernst Equation
(b) Helmholtz equation
(c) Arrhenius equation
(d) Bragg eguation
Question no.5
Antacids act by -
(a) Blocking the gastric secretion
(b) By binding with H+K+ ATPase enzyme
(c) Raising the pH of gast
(d) All of the above