\(H_2O\)
\(NH_3\)
\(HBr\)
\(HCl\)
Ammonia \((NH_3)\) can form linear chains or polymers through hydrogen bonding between ammonia molecules, leading to the formation of \(NH_3NH_3NH_3.….\) chains. This hydrogen bonding is responsible for some of the unique properties of ammonia, such as its high boiling and melting points.
So, the correct option is (B): \(NH_3\)
Given below are two statements. 
In the light of the above statements, choose the correct answer from the options given below:
Given below are two statements:
Statement I: Nitrogen forms oxides with +1 to +5 oxidation states due to the formation of $\mathrm{p} \pi-\mathrm{p} \pi$ bond with oxygen.
Statement II: Nitrogen does not form halides with +5 oxidation state due to the absence of d-orbital in it.
In the light of the above statements, choose the correct answer from the options given below:
Given below are the pairs of group 13 elements showing their relation in terms of atomic radius. $(\mathrm{B}<\mathrm{Al}),(\mathrm{Al}<\mathrm{Ga}),(\mathrm{Ga}<\mathrm{In})$ and $(\mathrm{In}<\mathrm{Tl})$ Identify the elements present in the incorrect pair and in that pair find out the element (X) that has higher ionic radius $\left(\mathrm{M}^{3+}\right)$ than the other one. The atomic number of the element (X) is