Problem 1
Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.
Problem 2
Write the names of isotopes of hydrogen. What is the mass ratio of these isotopes?
Problem 3
Why does hydrogen occur in a diatomic form rather than in a monoatomic form under normal conditions?
Problem 5
Describe the bulk preparation of dihydrogen by electrolytic method. What is the role of an electrolyte in this process?
Problem 7
Discuss the consequences of high enthalpy of \(\mathrm{H}-\mathrm{H}\) bond in terms of chemical reactivity of dihydrogen.
Problem 8
What do you understand by (i) electron-deficient. (ii) electron-precise, and (iii) electron-rich compounds of hydrogen? Provide justification with suitable examples.
Problem 9
What characteristics do you expect from an electron-deficient hydride with respect to its structure and chemical reactions?
Problem 10
Do you expect the carbon hydrides of the type \(\left(\mathrm{C}_{\mathrm{n}} \mathrm{H}_{2 n+2}\right)\) to act as 'Lewis' acid or base? Justify your answer.
Problem 11
What do you understand by the term "non-stoichiometric hydrides"? Do you expect this type of the hydrides to be formed by alkali metals? Justify your answer.
Problem 13
How does the atomic hydrogen or oxy-hydrogen torch function for cutting and welding purposes ? Explain.
