The p-Block Ele...

Each of the following is true for white and red phosphorus except that they:

$$2$$ moles of $$PCl_{5}$$ were heated in a closed vessel of $$2$$ litre capacity. At equilibrium, $$40\%$$ of $$PCl_{5}$$ is dissociated into $$PCl_{3}$$ and $$Cl_{2}$$. The value of equilibrium constant is:

In Haber's process $$50.0\ g$$ of $$N_{2}(g)$$ and $$10.0\ g$$ of $$H_{2}(g)$$ are mixed to produced $$NH_{3}(g)$$. What are the number of moles of $$NH_{3}(g)$$ formed?

Chlorine has two naturally occuring isotopes $$_{ 17 }^{ 37 }{ Cl }$$ and $$_{ 17 }^{ 35 }{ Cl }$$ and average atomic mass of chlorine is $$35.5$$. The percentage of $$_{ 17 }^{ 37 }{ Cl }$$ is:

Which among the following statements is incorrect?

Potassium permanganate $$\rightarrow$$ potassium manganate + $$A$$ + oxygen. 
What is $$A$$ in the given reaction?

Which of the following is the polar molecules ?

Phosphours sulphide $${ P }_{ 4 }{ S }_{ 3 }$$, a well known chemical used in match industry has many $$P-S$$ bonds ?

Select reaction in which at least one compound is formed as product, in which Xe is in +6 oxidation state? 

The atomic number of $$N$$ is 7. The atomic number of 3rd member of nitrogen family will be: