Discuss the consequences of high enthalpy of H-H bond interms of chemical reactivity of dihydrogen.

Discuss on the chemical reactivity of noble gases.

Discuss on the chemical reactivity of noble gases.

Discuss the trends in chemical reactivity of group 15 elements

What is the bond enthalpy of C-H bond of CH_(4) ?

Discuss a) Electronic configuration b) occurence c) chemical reactivity with reference to alkalimetals hence justify the inclusion of alkali metals in the same group.

Write are four uses of dihydrogen( H_2 ).

The C-H bond distance is largest in

The chemical behaviour of dihydrogen is determined, to a large extent, by bond dissociation enthalpy. The H-H bond dissociation enthalpy is the highest for a single bond between two atoms of any element. What inferences would you draw from this fact? It is because of this factor that the dissociation of dihydrogen into its atoms is only 0.081% around 2000K which increases to 95.5% at 5000K. Also, it is relatively inert at room temperature due to the high H-H bond enthalpy. Thus the atomic hydrogen is produced at a high temperature in an electric arc or under ultraviolet radiations. Since its orbital is incomplete with Is' electronic configuration, it does combine with almost all the elements. At which of the following temperatures, the dissociation of dihydrogen into its atoms will be maximum ?