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SULFUR, SELENIUM AND TELLURIUM The elements known commonly as the chalcogens are in the same group (16) as oxygen. They form some compounds same to those of oxygen, but show m
show how you would sythesise the following compounds, starting with benzene or toluene and any necessary acyclic reagents. Assume para is the major product.
why is AAS used to determine lead content in soil
Q. Isolation and purification of metals? metals as a group of elements have acquired a unique importance in the modern world. However, nature' does not generally offer us metal
Chemical methods - Purification of organic compounds Besides these physical methods, few chemical methods have as well been utilized to separate a mixture of organic compounds.
Geometrical or cis-trans isomerism The compounds that have similar molecular formula but differ in the relative spatial arrangement of atoms or groups in space are termed a
maximum no of unpaired electrons a)mn2+ b)ti3+ c)v3+ d)fe2+
principle of EDTA method
various types of medicines use in daily life? and classify them into analgesics, antipyretics, antibiotics, sedatives, antiseptics.
which one contain greater number of moles:96gH2SO4 64gO2 48gch4 10gH2
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