p-block elements are placed in groups 13 to 18 of the periodic table. Group 15 is nitrogen family. Nitrogen makes various compounds like \(NH _3, HNO _3, N_2 O , NO _2\) etc. Phosphorus exists in the form of white and red phosphorus. White phosphorus glows in dark. \(PH _3\) gas is used as smoke screen. Group 16 is called oxygen family. Dry air contains \(21\% O _2\) gas by volume. Combined sulphur exists as sulphates such as gypsum, epsome salt, baryte etc. The allotropic forms of sulphur are Rhombic and monoclinic sulphur. \(S_2\) is paramagnetic like \(O_2\) and it stable at high temperature.
Group 17 is Halogen family. \(F_2\) is highly reactive, \(Cl _2\) is greenish yellow gas. Both \(SO _2\) and \(Cl _2\) are used for bleaching. Group 18 is Noble gas family but some noble gases also form compounds.
Complete hydrolysis of \(XeF _6\) gives HF and \(XeO _3\) as main products.
Match List - I with List - II.

List - I	List - II
(A) Ammonia	(I) Rotten fish small
(B) Nitric Acid	(II) Detection of metal ions
(C) Phosphene	(III) Chemiluminescence
(D) White Phosphorus	(IV) Ostwald Process

Choose the correct answer from the options given below :

1. A (A) (II), (B) – (IV), (C) - (I), (D) – (III)
2. B (A)-(IV), (B) – (II), (C) – (I), (D) – (III)
3. C (A) (I), (B) - (IV), (C) - (III), (D) - (II)
4. D (A) (I), (B) - (II), (C) - (IV), (D) - (III)