Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET202124 Aug 2021Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Which of the following is not given by SO ₂ ?

Options

  1. AIt converts acidified iodates to iodine.
  2. BIt decolourises acidified KMnO ₄ solution.
  3. CIt reacts with acidified potassium dichromate to form green coloured solution.
  4. DIt reacts with green coloured ferrous sulphate to form yellowish brown ferric sulphate.

Correct answer

D. It reacts with green coloured ferrous sulphate to form yellowish brown ferric sulphate.

Step-by-step solution

(i) SO ₂ (Sulphur dioxide) reacts with potassium iodate to form sulphuric acid, potassium sulphate and iodine gas. 5 SO ₂+2 KIO ₃+4 H ₂ O 4 H ₂ SO ₄+ K ₂ SO ₄+ I ₂ (ii) 5 SO ₂+2 KMnO ₄+2 H ₂ O K ₂ SO ₄+2 H ₂ SO ₄+2 MnSO ₄ SO ₂ decolourise KMnO ₄ by converting it to Mn ²⁺ (iv) SO ₂ reduces ferric salts into ferrous salt changing colour from yellow to light green. Yellow Fe ₂ ( SO ₄ )₃ + SO ₂+2 H ₂ O Green 2 FeSO ₄ +2 H ₂ SO ₄

Practice p Block Elements (Group 15, 16, 17 & 18) on Quantrex Academy →

More from p Block Elements (Group 15, 16, 17 & 18)

Which among the following is NOT in accordance with the property stated against it? 2026Complete hydrolysis of Xenon hexafluoride gives HF along with compound X. The hybridisation in X is 2025Orthophosphorus acid on disproportionation gives PH ₃ and another oxoacid of phosphorus ' X '. The basicity of X is 2025Observe the following P ₄+ SOCl ₂ Products P ₄+ SO ₂ Cl ₂ Products In both the reactions, a common product ' x ' is obtained. The number of lone pair of elecrons on the central ato 2025The number of P = O , P - P bonds present in oxoacid of phosphorus, prepared by treating red P ₄ with alkali are respectively 2025Which of the following is not correct? 2025Nature of two oxides of nitrogen X and Y formed in the reaction of sodium nitrite with hydrochloric acid is 2025Which of the following is not correct ? 2025 Full p Block Elements (Group 15, 16, 17 & 18) list All AP EAMCET PYQs