Why Noble gases have very low boiling points?

Noble gases being monoatomic have no interatomic forces except weak dispersion forces and therefore, they are liquefied at very low temperatures. Hence, they have low boiling points.

Why chlorine trifluoride (ClF3) exists but fluorine trichloride (FCl3) does not?

Fluorine trichloride (FCl₃) does not exist due to unavailability of d-orbitals in fluorine atom it cannot expand its valence shell. Therefore it is unable to form FCl₃ whereas Chlorine has vacant d-orbitals. Hence it can promote one of the 3p electrons to the 3-d sub shell and shows +3 oxidation state and forms ClF₃

Related Questions:

Although electron affinity of chlorine is higher than fluorine, yet fluorine act as better oxidizing agent than chlorine? Explain.

Why chlorine trifluoride (ClF3) exists but fluorine trichloride (FCl3) does not?

Why Chlorine (Cl2) bleaches a substance permanently but sulphuredioxide (SO2) does it temporarily?

What is the correct order of electronegativity of Cl atoms in HClO, HClO2, HClO3 and HClO4 ?

How does the thermal stability of oxy acids of chlorine increase with an increase in the oxidation state of chlorine atom ?

Which of the following is a strongest acid among oxy acids of chlorine and why? "HClO, HClO2, HClO3, HClO4"

Which will have very fast tendency to dimerized ClO2 or NO and why?

Hypophosphorous acid (H3PO2) and Phosphorous acid (H3PO3) act as as good reducing agents while H3PO4 does not.Why?

We know that In Hypo phosphorous acid (H₃PO₂) has two H atoms are bonded directly to P atom and In Phosphorous acid (H₃PO₃) has one H atom is bonded directly to P atom which imparts reducing character to the acid, whereas in H₃PO₄ there is no H atom bonded directly to P atom hence it does not have reducing character.

Related Questions:

Which is more basic N(CH3)3 or N(SiH3)3 , explain?

Are all the five bonds of PCl5 equivalent? Justify your answer.

Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.

What are common structural features of oxides (P4O6 and P4O5) of phosphorous?

What are the structural difference between oxides ( P4O6 and P4O10) of phosphorous?

What are abnormal behaviour of Nitrogen atom as compared to other family members?

What is product obtained when N2O5 is treated with NaCl?

What is metaphophoric (HPO3)?

Phosphorus can form PCl5 but nitrogen can not form NCl5 why?

Why PCl3 hydrolysed while NCl3 can not be hydrolysed? 

Why bond angle of hydrides of group 15, decreases down the group?

What is "calgon" ? Give structure and its uses?

Why nitrogen shows catenation properties less than phosphorus?

Why Nitrogen is fairly inert gas?

Why Nitrogen (N2) is less reactive at room temperature?

Why Nitrogen dioxide (NO2) dimerises to form Dinitrogen tetraoxide (N2O4)?

Why Nitrogen dioxide (NO2) is coloured but Dinitrogen tetraoxide (N2O4) is colourless?

Hypophosphorous acid (H3PO2) and Phosphorous acid (H3PO3) act as as good reducing agents while H3PO4 does not.Why?

Why Nitrogen dioxide (NO2) is coloured but Dinitrogen tetraoxide (N2O4) is colourless?

Nitrogen dioxide (NO₂) has unpaired electrons therefore it absorbs light from visible and radiate brown colour whereas Dinitrogen tetra oxide (N₂O₄) does not have unpaired electrons so it does not absorb light from visible region.

Related Questions:

Which is more basic N(CH3)3 or N(SiH3)3 , explain?

Are all the five bonds of PCl5 equivalent? Justify your answer.

Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.

What are common structural features of oxides (P4O6 and P4O5) of phosphorous?

What are the structural difference between oxides ( P4O6 and P4O10) of phosphorous?

What are abnormal behaviour of Nitrogen atom as compared to other family members?

What is product obtained when N2O5 is treated with NaCl?

What is metaphophoric (HPO3)?

Phosphorus can form PCl5 but nitrogen can not form NCl5 why?

Why PCl3 hydrolysed while NCl3 can not be hydrolysed? 

Why bond angle of hydrides of group 15, decreases down the group?

What is "calgon" ? Give structure and its uses?

Why nitrogen shows catenation properties less than phosphorus?

Why Nitrogen is fairly inert gas?

Why Nitrogen (N2) is less reactive at room temperature?

Why Nitrogen dioxide (NO2) dimerises to form Dinitrogen tetraoxide (N2O4)?

Why Nitrogen dioxide (NO2) is coloured but Dinitrogen tetraoxide (N2O4) is colourless?

Hypophosphorous acid (H3PO2) and Phosphorous acid (H3PO3) act as as good reducing agents while H3PO4 does not.Why?

Why Nitrogen dioxide (NO2) dimerises to form Dinitrogen tetraoxide (N2O4)?

Nitrogen dioxide (NO₂) contains odd number of valence electrons. It behaves as a typical odd molecule. On dimerisation, it is converted to stable Dinitrogen tetra oxide (N₂O₄) molecule with even number of electrons.

Related Questions:

Which is more basic N(CH3)3 or N(SiH3)3 , explain?

Are all the five bonds of PCl5 equivalent? Justify your answer.

Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.

What are common structural features of oxides (P4O6 and P4O5) of phosphorous?

What are the structural difference between oxides ( P4O6 and P4O10) of phosphorous?

What are abnormal behaviour of Nitrogen atom as compared to other family members?

What is product obtained when N2O5 is treated with NaCl?

What is metaphophoric (HPO3)?

Phosphorus can form PCl5 but nitrogen can not form NCl5 why?

Why PCl3 hydrolysed while NCl3 can not be hydrolysed? 

Why bond angle of hydrides of group 15, decreases down the group?

What is "calgon" ? Give structure and its uses?

Why nitrogen shows catenation properties less than phosphorus?

Why Nitrogen is fairly inert gas?

Why Nitrogen (N2) is less reactive at room temperature?

Why Nitrogen dioxide (NO2) dimerises to form Dinitrogen tetraoxide (N2O4)?

Why Nitrogen dioxide (NO2) is coloured but Dinitrogen tetraoxide (N2O4) is colourless?

Hypophosphorous acid (H3PO2) and Phosphorous acid (H3PO3) act as as good reducing agents while H3PO4 does not.Why?