Suppose that a tlc plate is spotted with samples 1.0 cm above the bottom of the plate. select the consequence of inserting the plate into a developing chamber containing a pool of developing solvent that is 1.2 cm deep
(a) the compounds in the samples will leach into the pool of developing solvent resulting in poor resolution.
(b)the pencil marks will dissolve into the developing solvent.
(c)the increased capillary action will cause the compounds to migrate up the plate more quickly.
(d)the increased depth of developing solvent will result in better resolution of the compounds in each sample.

a

explanation:

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.