Looking for classes? Ksquare Career Institute, Bengaluru →
Which compound forms linear polymer due to H-bond :
A
$H_2O$
B
$NH_3$
C
HBr
D
HCl
Detailed Solution
Hydrogen bonding occurs when H is bonded to a small, highly electronegative atom (F, O or N). HBr and HCl do not form significant hydrogen bonds.
Water forms a three-dimensional hydrogen-bonded network (each molecule can form up to four hydrogen bonds), as in ice, rather than a simple linear chain.
As per the answer key, ammonia is taken as the compound forming a linear (chain) association through N–H$\cdots$N hydrogen bonds.
(The classic example of a linear (zig-zag) hydrogen-bonded polymer is HF, which is not among the options.)
So, as per the answer key, the answer is $NH_3$.
Water forms a three-dimensional hydrogen-bonded network (each molecule can form up to four hydrogen bonds), as in ice, rather than a simple linear chain.
As per the answer key, ammonia is taken as the compound forming a linear (chain) association through N–H$\cdots$N hydrogen bonds.
(The classic example of a linear (zig-zag) hydrogen-bonded polymer is HF, which is not among the options.)
So, as per the answer key, the answer is $NH_3$.