CN08 · Quiz — Everyday & Industrial Chemistry

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Question 1

The Solvay process for manufacturing sodium carbonate (Na₂CO₃) involves the key step:

ADirect combination of Na₂O and CO₂

BPassing CO₂ and NH₃ into saturated NaCl solution

CElectrolysis of molten NaCl

DNeutralisation of NaOH with CO₂

Question 2

The Ostwald process for manufacturing nitric acid (HNO₃) involves catalytic oxidation of ammonia. The key steps are:

AN₂ + O₂ → 2NO (direct combination at 2000°C)

B4NH₃ + 5O₂ → 4NO + 6H₂O

CNH₃ + HCl → NH₄Cl → HNO₃ by exchange

DElectrolysis of aqueous NH₄NO₃

Question 3

Nuclear fission of U-235 is triggered by:

AFast neutrons with kinetic energy > 1 MeV

BSlow (thermal) neutrons

CAlpha particles bombarding the nucleus

DGamma radiation hitting the nucleus

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CN08 — Everyday & Industrial Chemistry — Quiz