Identify the molecule \( (X) \) with maximum number of lone pairs of electrons (obtained using Lewis dot structure) among \( \mathrm{HNO_3} \), \( \mathrm{H_2SO_4} \), \( \mathrm{NF_3} \) and \( \mathrm{O_3} \). Choose the correct bond angle made by the central atom of the molecule \( (X) \).
