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q type specimen of class enteropneustaexamine the specimen and note the following features1 balanoglossus has a soft elongated worm-like body which
give an example of a pseudo first order reactionwrite the iupac name of the following ch32
two typical characters of the hemichordata that can be observed and used to identify them arei soft worm-like or short unsegmented bodyii body is
name a substance which on addition to agcl causes vacation vacancy in itmention a large scale use of the phenomenon called reverse
q scheme of classification of phylum hemichordatethese are about 90 species of hemichordates all are marine and live in the open sea or in muddy
define the following observationsi most of the known noble gas compounds are those of xenonii cif3 exists but fci 3 does notiii between the hydrides
q observation of hemichordata bullidentify balanoglossus as a hemicliordate and give its scientific and common namebullclassify balanogiossus lip to
a how is aniline obtained from benzeneb why are the secondary amines more basic than primary amines describec write the complete chemical reactions
a starting from a sample of chromate ore how is potassium dichromate prepared explain all the steps included with chemical equationsb write the
q what do you mean by hemichordata hemichordates re vermiform worm-like animals which have few characters like those of the chordates hence the name
write chemical tests to distinguish amonga phenol and benzoic acidb propanal and propanonec formic acid and acetic
write conditions and reactions for the following conversionsi chloroform into diethylcarbonateii phenol into salicylic acidiii 2-propanone into
give one significant use of each of the followingi bithionalii chloramphenicoliii streptomyciniv
what are hormones state the function of the following hormonesa testosteroneb
name the chemical components which constitute nucleotideswrite any two functions of nucleotides in a
using the valence bond approach reduce the shape and magnetic character ofwhat are elastomers write the chemical equation to show the preparation
how do you account for the followinga all scandium salts are white at no of sc 21b the first ionization energies of the 5d transition elements are
write one reaction each to exemplify the followinga aldol condensationb friedel-crafts
how are the following sole produceda sulphur solb
what are photochemical reactions explain the mechanism of the photo- chemical reaction occurring among hydrogen and chlorine
the standard free energy change for a reaction is -2123 kj mol -1if the enthalpy of the reaction is - 2167 kj mol-1 calculate the entropy change for
what are non-ideal solutionsdefine as to why non-ideal solutions deviate from raoults
caesiurn chloride crystallises as a body centred cubic lattice and has a density of 40 g cm-3 calculate the length of the edge of the unit cell of
mention the major reason for the anomalous behaviour of lithium in group of the periodic tablewhy is the third ionization energy of manganese at no
how does chemical adsorption of a gas on a solid vary with temperaturea mention the main reason for the anomalous behaviour of lithium in group of