ICSE Class 10 Hydrogen Chloride (HCl) — Mock Test (2027)
Free online mock test for Hydrogen Chloride (HCl) (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 Hydrogen Chloride (HCl) 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
-
1.Hydrogen chloride gas fumes in moist air due to its high ... in water.
- A.solubility
- B.basicity
- C.reactivity
- D.acidity
-
2.Give reason: Why cannot hydrogen chloride gas be dried over quick lime?
- A.Quick lime is a basic oxide and reacts with HCl to form calcium chloride and water.
- B.Quick lime absorbs HCl gas without any chemical reaction, making it ineffective.
- C.Hydrogen chloride gas decomposes in the presence of quick lime.
- D.Quick lime is too porous and allows HCl gas to escape without drying.
-
3.Which method is used to collect hydrogen chloride gas?
- A.Downward displacement of water
- B.Upward displacement of water
- C.Upward displacement of air
- D.Downward displacement of air
-
4.Choose the property of sulphuric acid (A, B, C, or D), which is relevant to each of the following: A
- A.Dilute acid (typical acid properties)
- B.Non-volatile acid
- C.Oxidising agent
- D.Dehydrating agent
-
5.The diagram below shows the collection of hydrogen chloride gas.
Why is hydrogen chloride gas collected by upward displacement of air?- A.Hydrogen chloride gas is lighter than air and rises to displace it downward.
- B.Hydrogen chloride gas is highly soluble in water, making this method efficient.
- C.Hydrogen chloride gas is heavier than air and settles to displace it upward.
- D.Hydrogen chloride gas reacts with air, so it must be collected this way.
Ready? Take the full 20-question test free — instant marking, no sign-up needed.
▶ Start free mock test