ICSE Class 10 Chemistry Sample Question Paper 2024-25: Download Free PDF with Marking Scheme

ICSE 2025 Chemistry Specimen Papers Class 10: The ICSE 2025 Chemistry Specimen Paper for Class 10 is an essential resource for students preparing for their board exams. This paper provides a clear understanding of the exam pattern, types of questions, and marking scheme. Accompanied by detailed answers, the specimen paper serves as a valuable tool for revision and practice, helping students to identify their strengths and areas that need improvement. By working through the specimen papers, students can build confidence and enhance their performance in the upcoming exams. Check and download the ICSE 10th Chemistry Specimen paper here with the answer key for the 2025 board exams.

ICSE Class 10 Chemistry 2025 Exam Guidelines

The basic guidelines that you will see on the Chemistry sample paper for better understanding:

• Maximum Marks: 80
• Time allowed: Two hours
• Answers to this Paper must be written on the answer sheet provided separately.
• You will not be allowed to write during the first 15 minutes. This time is to be spent in reading the question paper.
• The time given at the head of this Paper is the time allowed for writing the answers.
• Section A is compulsory.
• Attempt any four questions from Section B.

ICSE Class 10 Chemistry Sample Paper 2024-25

Question 1

Choose the correct answers to the questions from the given options.

(Do not copy the question, write the correct answers only.)

(i) An aqueous solution of copper sulphate turns colourless on electrolysis. Which of the following could be the electrodes?

P. anode: copper, cathode: copper

Q. anode: platinum; cathode: copper

R. anode: copper; cathode: platinum

(a) only P

(b) only Q

(c) only R

(d) both Q and R

(ii) A compound P is heated in a test tube with sodium hydroxide solution. A red litmus paper held at the mouth of the test tube turns blue. Which of the following could compound P be?

(a) zinc sulphate

(b) copper sulphate

(c) ferrous sulphate

(d) ammonium sulphate

(iii) Which of the following would weigh the least? (Atomic masses C-12, O-16, Na=23)

(a) 2 gram atoms of oxygen

(b) one mole of sodium

(c) 22.4 litres of carbon dioxide at STP

(d) 6.023 x 10²² atoms of carbon

(iv) The equation below shows the reaction between element 'X' and dilute sulphuric acid.

X(s) + H₂SO₄ (aq.) → XSO₄ (aq) + H₂(g)

Which particles are responsible for conducting electricity in dilute sulphuric acid and compound XSO₄?

(a) Electrons

(b) Only positive ions

(c) Only negative ions

(d) Both positive and negative ions

(v) Assertion (A): Dry hydrogen chloride gas is collected by the upward displacement of air.

Reason (R): Hydrogen chloride gas is lighter than air.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and R are true but R is not the correct explanation of A

(c) A is true but R is false

(d) A is false but R is true

(vi) The structures of four hydrocarbons are shown below:

How many isomers of butene are there?

(a) 1

(b) 2

(c) 3

(d) 4

(vii) Element 'P' has electronic configuration 2,8,8,1. The number of chlorine atoms present in the chloride of 'P' is:

(a) 2

(b) 1

(c) 3

(d) 4

(viii) ₁H² is an isotope of hydrogen. In the modern Periodic Table it will:

(a) be placed before hydrogen

(b) be placed after hydrogen

(c) be placed at the same position as hydrogen

(d) not have any position in the Periodic Table

(ix) A nitrate which forms a precipitate with ammonium hydroxide and is also soluble in excess of it:

(a) ferrous nitrate

(b) ferric nitrate

(c) lead nitrate

(d) copper nitrate

(x) Which of the following electronic configuration represents the most electropositive element?

(a) 2,1

(b) 2,8,1

(c) 2,2

(d) 2,8,2

(xi) Assertion (A): Alkali metals do not form dipositive ions.

Reason (R): After loss of one electron alkali metals achieve stable electronic configuration of noble gases.

(a) Both A and R are true and R is the correct explanation of A

(b) Both A and are true but R is not the correct explanation of A

(c) A is true but R is false

(d) A is false but R is true

(xii) The ratio between the volumes occupied by 4.4 grams of carbon dioxide and 2 grams of hydrogen gas is:

(a) 2.2:1

(b) 1:2.2

(c) 1:10

(d) 10:1

(xiii) Aqueous lead (II) nitrate can be distinguished from aqueous zinc nitrate by adding any of the following solution in excess, except:

(a) aqueous potassium chloride

(b) aqueous sodium sulphate

(c) dilute sulphuric acid

(d) sodium hydroxide solution

(xiv) Which of the following about oxides is correct?

(a) A basic oxide is an oxide of a non-metal

(b) Acidic oxides contain ionic bonds

(c) Amphoteric oxides contain a metal

(d) Basic oxides are always gases

Answer Key

(i) (b) only Q

(ii) (d) ammonium sulphate

(iii) (d) 6.023 x 10^22 atoms of carbon

(iv) (d) Both positive and negative ions

(v) (c) A is true but R is false

(vi) (b) 2

(vii) (b) 1

(viii) (c) be placed at the same position as hydrogen

(ix) (d) copper nitrate

(x) (b) 2,8,1

(xi) (a) Both A and R are true and R is the correct explanation of A

(xii) (c) 1:10

(xiii) (d) sodium hydroxide solution

(xiv) (c) (II) and (IV)

(xv) (d) Amphoteric oxides contain a metal

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Related:

• Download ICSE Class 10 Syllabus 2024-25 (Subject-Wise PDFs)
• Download ICSE Class 10 Selina Textbooks Free PDFs (Chapter-Wise)
• ICSE Class 10 Mock Tests (Subject-Wise)