Write four points of difference between properties of nitrogen and other element of group 15.
Explain structure of `CIF_(3)`.
Conductivity of a solution is `6.23 xx 10^(-5) Omega^(-1) cm^(-1)` and its resistance is 13710 `Omega`. If electrodes are electrode. Why is molality of a solution independent of temperature?

Explanation

(1) At ordinary temperature nitrogen is gas while other elements are solids.
(2) Nitrogen exists as diatomic molecule but other elements of the group are tetra atomic.
(3) Nitrogen has tendency to form `p pi - p pi` bonds but other elements form `p pi- d pi` instead of `p pi - p pi`.
(4) Due to small size and high electronegativity nitrogen has tendency to form hydrogen bonds in hydride compounds but other compound are not.
(5) Nitrogen shows wide range of oxidation state from -3 to + 5 but other elements not.
Explain structure of `CIF_(3)`
Ground state of `._(17)Cl`
Cross-sectional ara of electrode:
`K = (1)/(R ) xx (1)/(a)`
`6.23 xx 10^(-5) = (1)/(13710) xx (0.7)/(a)`
`a = 0.8196 cm^(3)`