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 formula of chile salt petre is
- a.KNO₃
- b.NaNO₃
- c.HNO₃
- d.None of these
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2.Nitrogen gas can be obtained by heating:
- a.Ammonium nitrate.
- b.Ammonium nitrite.
- c.Magnesium nitride.
- d.Ammonium chloride.
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3.What is the reason iron is rendered passive when treated with fuming nitric acid?
- A.Formation of a reddish-brown layer of iron oxide
- B.Evolution of hydrogen gas that coats the metal
- C.Formation of a soluble iron nitrate salt
- D.Rapid dissolution of iron into the acid
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4.What observation is made when crystals of copper nitrate are heated in a test tube?
- A.A blue residue and colorless gas are formed.
- B.A black residue and brown gas are observed.
- C.A white residue and green gas are formed.
- D.No visible change occurs.
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5.During a thunderstorm, rain water contains nitric acid. Which of the following correctly explains the formation of nitric acid with the help of reactions?
- A.Nitrogen and oxygen combine under lightning to form nitric oxide (NO), which then reacts with oxygen to form nitrogen dioxide (NO₂). NO₂ dissolves in rainwater to form nitric acid (HNO₃).
- B.Lightning causes nitrogen and water vapor to react directly, forming nitric acid (HNO₃) without intermediate steps.
- C.Oxygen in the air reacts with rainwater to form nitric acid (HNO₃) without involving nitrogen.
- D.Nitrogen dioxide (NO₂) is formed first, which then reacts with hydrogen in the air to produce nitric acid (HNO₃).
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