Paragraph
A trinitro compound, 1,3,5-tris-(4-nitrophenyl)benzene, on complete reaction with an excess of Sn/HCl gives a major product, which on treatment with an excess of /HCl at 0 ºC provides P as the product. P, upon treatment with excess of at room temperature, gives the product Q. Bromination of Q in aqueous medium furnishes the product R. The compound P upon treatment with an excess of phenol under basic conditions gives the product S.
The molar mass difference between compounds Q and R is 474 g mol and between compounds P and S is 172.5 g mol.
The number of heteroatoms present in one molecule of R is _______ .
[Use: Molar mass (in g mol): H = 1, C = 12, N = 14, O = 16, Br = 80, Cl = 35.5
Atoms other than C and H are considered as heteroatoms]
A trinitro compound, 1,3,5-tris-(4-nitrophenyl)benzene, on complete reaction with an excess of Sn/HCl gives a major product, which on treatment with an excess of /HCl at 0 ºC provides P as the product. P, upon treatment with excess of at room temperature, gives the product Q. Bromination of Q in aqueous medium furnishes the product R. The compound P upon treatment with an excess of phenol under basic conditions gives the product S.
The molar mass difference between compounds Q and R is 474 g mol and between compounds P and S is 172.5 g mol.
The number of heteroatoms present in one molecule of R is _______ .
[Use: Molar mass (in g mol): H = 1, C = 12, N = 14, O = 16, Br = 80, Cl = 35.5
Atoms other than C and H are considered as heteroatoms]
Show answer
Answer: 9
[JEE Advanced 2023 · Paper 2]