Describe Moissan’s method for the isolation of fluorine. Give the modifications done in the original method.
Fluorine is extracted using the Moissan's method. This method uses electroysis to isolate the element
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Explain giving suitable structures why ionic azides are more stable than covalent azides.
Why is the monomeric beryllium hydride unstable? Describe the structure of polymeric beryllium hydride.
Write the reactions for the following:
i) Reaction showing acidic behaviour of sulphur dioxide
ii) Reaction depicting the sulphonation by H2SO4
iii) Reactions of lead chambers during the manufacture of H2SO4 by Lead Chamber process
iv) Reaction distinguishing between peroxomonosulphuric acid and peroxodisulphuric acid
v) Reduction reaction of H2O2 with chlorine
Justify the position of hydrogen atom in both the groups, Group 1and Group 17.
Write down the names of the following complexes:
i) 
ii) [CoCl (NO2) (en)2] Cl
iii) K2(PtCl6]
Which metals are called class ‘a’ elements or ‘hard acids’ and why?
In which cases is hydrometallurgy applicable? In such cases, how are the leached out
metals recovered from solution? Explain with suitable examples.