KVPY2018Chemistryp Block Elements (Group 15, 16, 17 & 18)
Among C ,   S and P , the element (s) that produce (s) SO 2 on reaction with hot conc. H 2 SO 4 is/are
Options
- AOnly S
- BOnly C and S
- COnly S and P
- DC ,   S and P
Correct answer
D. C ,   S and P
Step-by-step solution
The reactions between given elements, S ,   C and P with conc. H 2 SO 4 are as follows: C + H 2 SO 4 ⟶ CO 2 + SO 2 + H 2 O S + H 2 SO 4 ⟶ SO 2 + H 2 O P 4 + H 2 SO 4 ⟶ H 3 PO 4 + SO 2 + H 2 O Thus, all the given elements produces SO 2 on reaction with hot concentration.