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Question:
(i) List the different members of the marine mammalian groups.
(ii) Explain the term "stranding" and give some reasons why cetaceans strand?
(iii) Cetaceans, being predators at the top of the food chain, may be good indicators of the health of the oceans; however, their populations have declined considerably over the past decades. List some of the potential threats causing their decline.
(iv) What do you understand by the term "Echolocation"
(v) Give one difference between a marine turtle and a marine mammal.
(vi) List the species of marine turtles common in Mauritius waters.
(vi) What do we mean by "water quality"?
(viii) Why do we have Water -Quality Standards and Guidelines?
(ix) How is water quality measured?
The equilibrium constant Kp=4 at 1993K for the reaction H2+CO2->H2O+CO. INitially H2 and CO2 having 0.8 moles were injected in 5l flask. Find equilibrium concentration of CO2.
Baeyer's reagent - Tests of unsaturation It is 1% solution consisting of sodium carbonate. It is of pink in colour. An aqueous solution of the element, some drops of Baeyer's
names of different polyfunctional groups alon g with their structures
Q. Show diffrent type of Ligands? Ligands which contain one donor atom are called monodentate the donor atom may contain One or more than one lone pairs of electrons. The l
Thermodynamics Thermodynamics is a macroscopic science and its most fundamental level is the study of two physical energy, entropy and quantities. Energy may be regarded as the
Alkanes have single bond, but why are they less reactive as compared to alkenes or alkynes which have respectively double or triple bonds ? Alkanes have only single sigma bond w
Copper=54.1%, oxygen=20.1% and the balance sulfur. Could this also be the molecular formula? What other data is needed?
Applications of hybridisation - Size of the hybrid orbitals As s- orbitals are closer to the nucleus than p- orbitals, it is reasonable to suppose that greater the s character
Explain Curie point and hystereris? An ordinary piece of iron generally has little or no net magnetic moment. Though, if it is placed in a strong enough external magnetic fie
Q. Illustrate Classification of Emulsions? Emulsions are classified as: • Oil-in-water emulsion: This is a colloidal dispersion in which droplets of oil are dispersed in
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