This may presumably be due to more
tendency of Bi to form three rather than five covalent bonds (inert pair
effect). Thus there are weak forces of attraction between their atoms in
solid state, accounting for its low m.p.
Search This Blog
Showing posts with label 15th Group : NITROGEN FAMILY. Show all posts
Showing posts with label 15th Group : NITROGEN FAMILY. Show all posts
Thursday, August 6, 2020
Why bismuth has low m.p. while if going down the group m.p. increases?
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?
Topic:
15th Group : NITROGEN FAMILY
Which element among group 15 elements has lowest boiling point?
Nitrogen (N2)
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?
Topic:
15th Group : NITROGEN FAMILY
Why white phosphorous is stored under water?
White phosphorous is very reactive and will spontaneously inflame in
air so it is stored under water.
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?
Topic:
15th Group : NITROGEN FAMILY
Which allotrope of phosphorous is used on top head of match stick?
Red Phosphorous is used on top head of match stick.
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?
Topic:
15th Group : NITROGEN FAMILY
Why the first ionization energy of group 15 elements much higher than those of corresponding group 14 elements?
The
first ionization energy of group 15 elements much higher than those of
corresponding group 14 elements this is due to increase in nuclear charge and
extra stable configuration of the elements of this group. The extra stability
of configuration is attributed to the exactly half filled p – orbitals in their
valence shells.
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?
Topic:
15th Group : NITROGEN FAMILY
Sunday, June 14, 2020
Sunday, February 23, 2020
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:
Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.
Why PCl3 hydrolysed while NCl3 can not be hydrolysed?
Topic:
15th Group : NITROGEN FAMILY
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:
Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.
Why PCl3 hydrolysed while NCl3 can not be hydrolysed?
Topic:
15th Group : NITROGEN FAMILY
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.
Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.
Why bond angle of hydrides of group 15, decreases down the group?
Related Questions:
Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.
Why PCl3 hydrolysed while NCl3 can not be hydrolysed?
Why Nitrogen (N2) is less reactive at room temperature?
Because of strong pπ–pπ overlap Nitrogen has triple bond between two nitrogen atoms (N≡N) which has high bond dissociation energy. So it is less reactive.
Related Questions:
Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.
Why PCl3 hydrolysed while NCl3 can not be hydrolysed?
Topic:
15th Group : NITROGEN FAMILY
Why Nitrogen is fairly inert gas?
Nitrogen exists as triply bonded (pπ–pπ overlap) diatomic non polar molecule. Due to short inter nuclear distance between two nitrogen atoms the bond strength is very high. It is therefore, very difficult to break the bond.
Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.
Why bond angle of hydrides of group 15, decreases down the group?
Related Questions:
Trisilyl amine, N(SiH3)3 is planar whereas trimethyl amines N(CH3)3 is pyramidal. Explain why?.
Why PCl3 hydrolysed while NCl3 can not be hydrolysed?
Topic:
15th Group : NITROGEN FAMILY
Subscribe to:
Posts (Atom)