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name the chief ore of silverexplain with chemical equations the extraction of silver from this
describe the following observationsa lyophilic colloid is more stable than lyophobic colloidb coagulation takes place when sodium chloride solution
a how can a colloidal solution and true solution of the similar colour be distinguished from each otherb give four applications of
a how does vulcanization change the character of natural rubberb why are the numbers 66 and 6 put in the names of nylon-66 and
write the structures of monomers used in the preparation ofa teflonb
write the reactions and the conditions involved in the conversion ofa propene to 1-propanolb phenol to salicyclic
write chemical equations 1 the reactions involved in the manufacture of potassium permanganate from pyrolusite orewhat are enantiomersdraw the
what is meant by entropy driven reactionhow can a reaction with positive changes of enthalpy and entropy are made entropy
a give a chemical test to distinguish between aniline and n-methyl anilinedraw the structure of xef2 moleculeb write the outer electronic
a cubic solid is made of two elements x and yatoms v are at the corners of the cube and x at the body centrewhat is the formula of the
a write the following about protein synthesisi name the location where protein synthesis occursii how do 64 codons code for only 20 amino acidsiii
a write chemical equations for the reactions of glucose withi acetic anhydride andii ammoniacal silver nitrate solutionb draw simple fischer
explain electrical conductivity and molar conductivity of a solution and write the units of molar
state the function along with one example each ofi antihistaminesii antioxidants b what are hybrid
a assign a reason for each of the following statementsi alkylamines are stronger bases than arylaminesii acetonitrile is preferred as solvent for
a write the structural formula of 3-phenylprop-2-enalb write one chemical equation each to illustrate the following reactionsi aldol condensationii
illustrate with examplesa lyophilic and lyophobic solsb multimolecular and macromolecular colloidsc homogeneous and heterogeneous
a first order reaction takes 693 minutes for 50 completionset up an equation for determining the time needed for 80 completion of this
comment on the validity of the following statements giving reasonsa thermodynamically an exothermic reaction is sometimes not spontaneousb the
a solution is made by dissolving30 g of a non-volatile solute in 90 g of waterit has a vapour pressure of 28 kpa at 298 k at 298 k vapour pressure of
what parts of molecular forces are expected to exist between the species in any three of the following pairs constituting mixturesa he and n2b cl2
what is meant by linear combination of atomic orbitalsstate bonding and antibonding molecular orbitals based on bomo-nuclear dihydrogen
what are enantiomers and diastereomers differentiate among chiral and achiral moleculesgive an state of reimer-tiemann reaction how is bakelite
explain the steps involved in the preparation of either potassium dichromate from sodium chromate or potassium permanganate from manganese
write one chemical reaction each to show thata tin ii chloride is a reducing agentb chlorine gas can be getting from bleaching