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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

  1. AOnly S
  2. BOnly C and S
  3. COnly S and P
  4. 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.

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