Anomalous Behavior of Nitrogen

Question 1

Due to 4 factors - small size of atom, high electronegativity, absence of d-orbitals and tendency to form multiple bonds

Answer 1

..

Question 2

N is a gas while others are solids

Answer 2

..

Question 3

N is diatomic while others form tetraatomic like P4

Answer 3

..

Question 4

Catenation more pronounced..upto 8 nitrogen atoms are known but in others only 2 atoms is possible

Answer 4

..

Question 5

N forms 5 oxides. Others can form max 3 - X2O3, X2O4 and X2O5

Answer 5

..

Question 6

N2O3 and N2O5 are monomeric but oxides of others are dimeric

Answer 6

..

Question 7

NH3 is stable while hydrides of other elements are not. Hydrogen bonding present only in NH3

Answer 7

..

Question 8

Except NF3, other halides of Nitrogen are unstable and explosive. Halides of other elements are stable

Answer 8

..

Question 9

Unlike P, As and Sb, N doesnt form pentahalides

Answer 9

..

Question 10

Can form trinegative ion N3- due to small size and high electronegativity. This tendency is less in P but absent in other elements

Answer 10

..

Question 11

Max covalency is 3 as N doesnt have d-orbitals. For others, max covalency is 5

Answer 11

..

Question 12

Chemically inert under ordinary atmospheric conditions due to high dissociation energy. Other elements are quite reactive as they have single bonds and low dissociation energies

Answer 12

..

Question 13

Shows large number of oxidation states from -3 to +5. Other elements show limited oxidation states between -3 and +5.

Answer 13

..

Question 14

Does not form sulphide while all other elements do

Answer 14

..

Question 15

Non-metal due to high electronegativity. As and Sb are metalloids and Bi is a metal (Note Sb is metalloid, not metal)

Answer 15

..

Question 16

N, CO and Cyanide ion are isoelectronic in nature. N is inert while other species are active. Bond between N atoms is non-polar.

Answer 16

…