Related Questions

In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into fourparts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations iscorrect. 1. Marine biology is the study of organisms in the ocean.
P. At a fundamental level, marine life helps determine the very nature of our planet.
Q. Marine life is a vast resource.
R. Shorelines are also shaped and protected by marine life.
S. Marine organisms contribute significantly to the oxygen cycle.
6. Marine biology covers a great deal, from the microscopic to the huge whales.
Which of the following is a problem associated with the isolation of polar bioactive compounds of marine origin?
Addition of alcohols can prevent which of the following in isolation of marine polar bioactive compounds?
The isolation of bioactive compounds from which of the following fractions is easy?
Which of the following is used for concentration of aqueous extracts of marine bioactive compounds?
Organic solvents are used to isolate bioactive compounds from marine organisms.
If the solvent phase in TLC was 80:20 mixture of hexane and ethyl acetate, the polar compounds will not move as much as non-polar compounds.
When the solvent phase in TLC is 20:80 mixture of hexane and ethyl acetate, the polar compounds will not move as much as non-polar compounds.
The polar compounds are more soluble in organic solvent while non-polar compounds are soluble in water.
This mention statement is associated with
“In any network containing more than one sources of e.m.f. the current in any branch is the algebraic sum of a number of individual currents (the number being equal to the number of sources of e.m.f.), each of which is due to separate action of each source of e.m.f., taken order, when the remaining sources of e.m.f. are replaced by conductors, the resistances of which are equal to the internal resistances of the respective sources”.