Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET20228 Jul 2022Morning ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Small quantities of NO and HNO ₃ are formed as impurities, when N ₂ is prepared from NH ₄ Cl (aq) and NaNO ₂ (aq), these impurities can be removed by passing the N ₂ gas through which of the following?

Options

  1. AH ₂ SO ₄( aq ) containing SO ₃
  2. BH ₂ SO ₄( aq ) containing K ₂ Cr ₂ O ₇
  3. CH ₂ SO ₄( aq ) containing KMnO ₄
  4. DHCl ( aq ) containing KMnO ₄

Correct answer

B. H ₂ SO ₄( aq ) containing K ₂ Cr ₂ O ₇

Step-by-step solution

NH ₄ Cl ( aq )+ NaNO ₂( aq ) N ₂ +2 H ₂ O + NaCl The impurities of NO and HNO ₃ in the N ₂ gas can be removed by passing the gas through an aqueous H ₂ SO ₄ solution containing K ₂ Cr ₂ O ₇ .

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