ICSE Class 10 Nitric Acid (HNO3) — Mock Test (2027)
Free online mock test for Nitric Acid (HNO3) (ICSE Class 10 Chemistry) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Nitric Acid (HNO3) chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.The ratio of ammonia and air taken in Ostwald's process is
- A.10:1
- B.1:10
- C.1:3
- D.3:1
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2.Which of the following represents the correct balanced chemical equations for the reaction of aqua regia with platinum and gold?
- A.Pt + 4Cl → PtCl₄ and Au + 3Cl → AuCl₃
- B.Pt + 2Cl₂ → PtCl₄ and Au + Cl₂ → AuCl₃
- C.Pt + Cl₂ → PtCl₂ and Au + Cl → AuCl
- D.Pt + 4HCl → PtCl₄ + 2H₂ and Au + 3HCl → AuCl₃ + 1.5H₂
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3.Name the gas evolved (formula is not acceptable) when dilute nitric acid reacts with copper.
- A.Nitrogen dioxide
- B.Nitric oxide
- C.Ammonia
- D.Dinitrogen oxide
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4.The table below is incomplete. Identify the correct set of missing details for the process that produces nitric acid from ammonia and air.
Name of process Inputs Catalyst Equation for catalysed reaction Output --- Ammonia + air --- --- Nitric acid - A.Ostwald's process, Platinum, 4NH₃ + 5O₂ → 4NO + 6H₂O (uncatalysed)
- B.Haber process, Iron, N₂ + 3H₂ → 2NH₃
- C.Ostwald's process, Platinum, 4NH₃ + 5O₂ → 4NO + 6H₂O (catalysed by Pt at 800°C)
- D.Contact process, Vanadium pentoxide, 2SO₂ + O₂ → 2SO₃
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5.Why is nitric acid not used in the preparation of hydrogen gas? Which metals can produce hydrogen with very dilute nitric acid?
- A.Nitric acid is a weak acid and does not react with most metals to produce hydrogen. Only iron and zinc can produce hydrogen.
- B.Nitric acid is a strong oxidising agent and oxidises hydrogen to water. Only magnesium and manganese can produce hydrogen with very dilute nitric acid.
- C.Nitric acid decomposes into nitrogen dioxide and oxygen, preventing hydrogen formation. Only copper and silver can produce hydrogen.
- D.Nitric acid reacts too slowly with metals to produce hydrogen. Only gold and platinum can produce hydrogen with very dilute nitric acid.
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