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q describe peroxomonosulphuric acidit is also known as permonosulphuric acid it is obtained by the action of chlorosulphuricacid on cold anhydrous
q show reversible and exothermic reactionthe fact that so2 can be oxidised to so3 by air in the presence of platinum catalyst is the basis of the
q explain lead chamber processlead chamber process is the older of the two processes in this process so2 is produced by burning s or roasting
q explain about sulphuric acidsulphuric acid is one of the most important chemicals both in industry as well as in the laboratorytwo methods are
q describe sulphurous acid sulphurous acid h2so3 is known only in solution it exists mainly as a hydrate of sulphur dioxide so2 7h2o two series of
q show the oxoacids of sulphuras you know oxoacid is an acid in which the ionisable hydrogen atom is bonded through an oxygen atom to the central
q explain about neutral and amphoteric oxidesneutral oxides have neither acidic nor basic properties and when dissolved in water they give neutral
q show the broader classificationa broader classification is based on the reaction of the oxide with water according to this oxides are classified as
q describe about oxidesas said before oxygen reacts practically with all the elements in the periodic table except lighter noble gases to form binary
q explain about dihalidedihalides dichlorides and dibromides are formed by the lower members of the group viz se te and po these are formed mainly by
q explain about monohalidesmonohalides of the type m2x2 where x f c1 and br are formed only by 0 s and se oxygen monofluoride decomposes above 25 k
q chemical properties of group16oxygen is slightly less reactive than the halogens but reacts directly with nearly all the elements except the noble
q show bond lengths and ppi - dpi bondingthe bonds between s and 0 are much shorter than expected for a single bond in its oxides and therefore may
q show general characteristics of group16the valence shell electronic configuration of group 16 elements is ns2 ns4 these elements tend to gain inert
q what are the uses of telluriumtellurium is used primarily as an additive to steel to increase its ductility it is also used as an additive to some
q uses of seleniumuses of selenium include photocopying process of xerography decobrisation of glasses and as a catalytic agent particularly in the
q show uses of sulphursulphur is used in the manufacture of sulphur dioxide sulphuric acid and gunpowder match fertilisers drugs bleaching agents
q what are the uses of oxygenoxygen is essential for life most life processes are based on oxidative metabolism while the terrestrial beings take up
q show occurrence extraction of group 16oxygen is the most abundant of all elements on earth dry air contains 20946 oxygen by volume in the free form
q objective of elements of group 16you should be able tobulldescribe the occurrence extraction and uses of the elements of group 16bulldescribe the
q study of elements of group 16we shall discuss group 16 elements viz oxygen sulphur selenium tellurium and polonium these elements are called
q beneficiation of oresmost of the ores available in nature contain large amounts of impurities ie gangue direct extraction of metals from the ores
q storehouse of mineralsin addition to the earths crust oceans also provide a huge storehouse of minerals in which the metals occur primarily as
q describe about halide mineralshighly electropositive alkali and alkaline earth metals tend to form halide salts which being soluble in water are
q describe oxosaltsin these minerals metals are present as their oxosalts such as carbonates sulphates nitrates phosphates borates and silicates some