NEETChemistryp Block Elements (Group 15, 16, 17 & 18)
Identify the correct statements from the following: i. Sulphuric acid is manufactured by contact process. ii. ( SO ₃ ) dissolves in ( H ₂ SO ₄ ) to form pyrosulphuric acid. iii. ( H ₂ SO ₄ ) is used in the manufacture of fertilisers such as ammonium sulphate and super phosphate. iv. In the reaction, ( S +2 H ₂ SO ₄ ) (Conc.) ( 3 SO ₂+2 H ₂ O , H ₂ SO ₄ ) is oxidised to ( SO ₂ ).
Options
- Ai, ii, iii, iv
- Bi, ii, iv only
- Ci, iii, iv only
- Di, ii, iii only
Correct answer
D. i, ii, iii only
Step-by-step solution
Among the given statements (i), (ii) and (iii) are correct whereas (iv) is incorrect. The correct explanation of (iv) is as follows: In the reaction, Here, ( S ) is getting oxidised to ( SO ₂ ).