Pattern on paper
in chromatography is called………
a) chroming
b) chromatogram
c) chramatograph
d) chroma
In chromatography, mobile phase can be……..
a) gas or liquid
b) gas or solid
c) solid or liquid
d) only solid
The technique used to separate molecules of different electrical charge is called...
a) electrophoresis
b) autoradiography
c) spectrophotometery
d) chromatography
Which of the following factor/s affect/s the speed with which charge molecules move toward an electrode in the process of electrophoresis?
a) the amount of charge
b) the size of molecules
c) the shape of molecules
d) both a and b
Explanation: greater the charge, faster the movement and smaller the size, faster the movement and vice versa
Which of the following technique is used to measure the change in percentage transmission of light of the suspension material?
a) electrophoresis
b) autoradiography
c) spectrophotometery
d) chromatography
Explanation: the cell mass is directly proportional to the optical density
The determination of amino acids by spectrophotometeric analysis is based upon specific……..absorption.
a) heat
b) light
c) water
d) oxygen
