The p-Block Ele...

The heat of atomisation of $${ P }_{ 2 }{ H }_{ 4 } (g)$$ and $${ P }{ H }_{ 3 } (g)$$ are 355 kcal/mol and 228 kcal/mol respectively. The energy of $$P-P$$ bond is:

In the Haber process for the industrial manufacturing of ammonia involving the reaction
$${ N }_{ 2 }(g)+3{ H }_{ 2 }(g)\rightleftharpoons 2{ NH }_{ 3 }(g)$$ at $$200atm$$ pressure in the presence of a catalyst, a temperature of about $${ 500 }^{ o }C$$ is used. This is considered as optimum temperature for the process because:

Formation of ammonia will be favorable in the following cases(s):
$$N_2(g)\,+\,3H_2(g)\rightarrow2NH_3(g)$$      $$\Delta H\,<\,0$$

The oxidation state of nitrogen in dinitrogen trioxide is:

Which product will obtained in the following reaction?
Reaction: $${ P }_{ { 4 }_{ (a) } }+3Na{ OH }_{ (aq) }+3{ H }_{ 2 }{ O }_{ (l) }\quad \longrightarrow $$

Xenon hexafluoride on partial hydrolysis produces compounds 'X' and 'Y'. Compounds 'X' and 'Y' and the oxidation state of Xe are respectively _______.

Which of the following factors would favour the formation of ammonia?

A cold, green flame can be made by passing carbon dioxide over warm.

Which gas is produced when calcium nitride $$(Ca_{3}N_{2})$$ is hydrolyzed by water?

Which of the following compounds will not give ammonia on heating?